Finding the Third Proportional to 910,132,517,389.50 and 1,980,485,020,972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   910,132,517,389.50 : 1,980,485,020,972.50 = 1,980,485,020,972.50 : x
2. Step 2: Convert to fraction form
   910,132,517,389.50/1,980,485,020,972.50 = 1,980,485,020,972.50/x
3. Step 3: Cross multiply
   910,132,517,389.50x = 1,980,485,020,972.50 × 1,980,485,020,972.50
4. Step 4: Simplify right side
   910,132,517,389.50x = 3,922,320,918,296,443,809,169,408
5. Step 5: Solve for x
   x = 3,922,320,918,296,443,809,169,408/910,132,517,389.50
6. Step 6: Final answer
   x = 4,309,615,186,090.37