Finding the Third Proportional to 115,046,442 and 155,485,788

Step by Step Solution

1. Step 1: Write the proportion equation
   115,046,442 : 155,485,788 = 155,485,788 : x
2. Step 2: Convert to fraction form
   115,046,442/155,485,788 = 155,485,788/x
3. Step 3: Cross multiply
   115,046,442x = 155,485,788 × 155,485,788
4. Step 4: Simplify right side
   115,046,442x = 24,175,830,269,980,944
5. Step 5: Solve for x
   x = 24,175,830,269,980,944/115,046,442
6. Step 6: Final answer
   x = 210,139,747.48