Finding the Third Proportional to 31,003,344 and 72,414,796.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,344 : 72,414,796.50 = 72,414,796.50 : x
2. Step 2: Convert to fraction form
   31,003,344/72,414,796.50 = 72,414,796.50/x
3. Step 3: Cross multiply
   31,003,344x = 72,414,796.50 × 72,414,796.50
4. Step 4: Simplify right side
   31,003,344x = 5,243,902,752,136,412
5. Step 5: Solve for x
   x = 5,243,902,752,136,412/31,003,344
6. Step 6: Final answer
   x = 169,139,908.01