Finding the Third Proportional to 57,499 and 85,894

Step by Step Solution

1. Step 1: Write the proportion equation
   57,499 : 85,894 = 85,894 : x
2. Step 2: Convert to fraction form
   57,499/85,894 = 85,894/x
3. Step 3: Cross multiply
   57,499x = 85,894 × 85,894
4. Step 4: Simplify right side
   57,499x = 7,377,779,236
5. Step 5: Solve for x
   x = 7,377,779,236/57,499
6. Step 6: Final answer
   x = 128,311.44