Finding the Third Proportional to 39,499.17 and 55,890.14

Step by Step Solution

1. Step 1: Write the proportion equation
   39,499.17 : 55,890.14 = 55,890.14 : x
2. Step 2: Convert to fraction form
   39,499.17/55,890.14 = 55,890.14/x
3. Step 3: Cross multiply
   39,499.17x = 55,890.14 × 55,890.14
4. Step 4: Simplify right side
   39,499.17x = 3,123,707,819.08
5. Step 5: Solve for x
   x = 3,123,707,819.08/39,499.17
6. Step 6: Final answer
   x = 79,082.87