Finding the Third Proportional to 57,372.05 and 86,108.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,372.05 : 86,108.06 = 86,108.06 : x
2. Step 2: Convert to fraction form
   57,372.05/86,108.06 = 86,108.06/x
3. Step 3: Cross multiply
   57,372.05x = 86,108.06 × 86,108.06
4. Step 4: Simplify right side
   57,372.05x = 7,414,598,427.50
5. Step 5: Solve for x
   x = 7,414,598,427.50/57,372.05
6. Step 6: Final answer
   x = 129,237.13