Finding the Third Proportional to 71,117,980 and 155,157,772

Step by Step Solution

1. Step 1: Write the proportion equation
   71,117,980 : 155,157,772 = 155,157,772 : x
2. Step 2: Convert to fraction form
   71,117,980/155,157,772 = 155,157,772/x
3. Step 3: Cross multiply
   71,117,980x = 155,157,772 × 155,157,772
4. Step 4: Simplify right side
   71,117,980x = 24,073,934,212,003,984
5. Step 5: Solve for x
   x = 24,073,934,212,003,984/71,117,980
6. Step 6: Final answer
   x = 338,507,002.20