Finding the Third Proportional to 614,510,017.50 and 898,435,128

Step by Step Solution

1. Step 1: Write the proportion equation
   614,510,017.50 : 898,435,128 = 898,435,128 : x
2. Step 2: Convert to fraction form
   614,510,017.50/898,435,128 = 898,435,128/x
3. Step 3: Cross multiply
   614,510,017.50x = 898,435,128 × 898,435,128
4. Step 4: Simplify right side
   614,510,017.50x = 807,185,679,224,376,320
5. Step 5: Solve for x
   x = 807,185,679,224,376,320/614,510,017.50
6. Step 6: Final answer
   x = 1,313,543,565.18