Finding the Third Proportional to 908,139,708 and 1,421,486,677.50

Step by Step Solution

1. Step 1: Write the proportion equation
   908,139,708 : 1,421,486,677.50 = 1,421,486,677.50 : x
2. Step 2: Convert to fraction form
   908,139,708/1,421,486,677.50 = 1,421,486,677.50/x
3. Step 3: Cross multiply
   908,139,708x = 1,421,486,677.50 × 1,421,486,677.50
4. Step 4: Simplify right side
   908,139,708x = 2,020,624,374,309,989,120
5. Step 5: Solve for x
   x = 2,020,624,374,309,989,120/908,139,708
6. Step 6: Final answer
   x = 2,225,014,891.99