Finding the Third Proportional to 71,645,978 and 155,456,049

Step by Step Solution

1. Step 1: Write the proportion equation
   71,645,978 : 155,456,049 = 155,456,049 : x
2. Step 2: Convert to fraction form
   71,645,978/155,456,049 = 155,456,049/x
3. Step 3: Cross multiply
   71,645,978x = 155,456,049 × 155,456,049
4. Step 4: Simplify right side
   71,645,978x = 24,166,583,170,690,400
5. Step 5: Solve for x
   x = 24,166,583,170,690,400/71,645,978
6. Step 6: Final answer
   x = 337,305,510.31