Finding the Third Proportional to 644,614,232 and 1,381,123,156

Step by Step Solution

1. Step 1: Write the proportion equation
   644,614,232 : 1,381,123,156 = 1,381,123,156 : x
2. Step 2: Convert to fraction form
   644,614,232/1,381,123,156 = 1,381,123,156/x
3. Step 3: Cross multiply
   644,614,232x = 1,381,123,156 × 1,381,123,156
4. Step 4: Simplify right side
   644,614,232x = 1,907,501,172,039,400,448
5. Step 5: Solve for x
   x = 1,907,501,172,039,400,448/644,614,232
6. Step 6: Final answer
   x = 2,959,135,987.61