Finding the Third Proportional to 57,486.38 and 85,875.56

Step by Step Solution

1. Step 1: Write the proportion equation
   57,486.38 : 85,875.56 = 85,875.56 : x
2. Step 2: Convert to fraction form
   57,486.38/85,875.56 = 85,875.56/x
3. Step 3: Cross multiply
   57,486.38x = 85,875.56 × 85,875.56
4. Step 4: Simplify right side
   57,486.38x = 7,374,612,234.69
5. Step 5: Solve for x
   x = 7,374,612,234.69/57,486.38
6. Step 6: Final answer
   x = 128,284.52