Finding the Third Proportional to 402,164,902 and 867,816,098

Step by Step Solution

1. Step 1: Write the proportion equation
   402,164,902 : 867,816,098 = 867,816,098 : x
2. Step 2: Convert to fraction form
   402,164,902/867,816,098 = 867,816,098/x
3. Step 3: Cross multiply
   402,164,902x = 867,816,098 × 867,816,098
4. Step 4: Simplify right side
   402,164,902x = 753,104,779,947,945,600
5. Step 5: Solve for x
   x = 753,104,779,947,945,600/402,164,902
6. Step 6: Final answer
   x = 1,872,626,816.02