Finding the Third Proportional to 371,892,870 and 810,747,402

Step by Step Solution

1. Step 1: Write the proportion equation
   371,892,870 : 810,747,402 = 810,747,402 : x
2. Step 2: Convert to fraction form
   371,892,870/810,747,402 = 810,747,402/x
3. Step 3: Cross multiply
   371,892,870x = 810,747,402 × 810,747,402
4. Step 4: Simplify right side
   371,892,870x = 657,311,349,849,749,632
5. Step 5: Solve for x
   x = 657,311,349,849,749,632/371,892,870
6. Step 6: Final answer
   x = 1,767,474,998.51