Finding the Third Proportional to 57,978.28 and 76,932.28

Step by Step Solution

1. Step 1: Write the proportion equation
   57,978.28 : 76,932.28 = 76,932.28 : x
2. Step 2: Convert to fraction form
   57,978.28/76,932.28 = 76,932.28/x
3. Step 3: Cross multiply
   57,978.28x = 76,932.28 × 76,932.28
4. Step 4: Simplify right side
   57,978.28x = 5,918,575,898.33
5. Step 5: Solve for x
   x = 5,918,575,898.33/57,978.28
6. Step 6: Final answer
   x = 102,082.64