Finding the Third Proportional to 39,405.38 and 87,557.63

Step by Step Solution

1. Step 1: Write the proportion equation
   39,405.38 : 87,557.63 = 87,557.63 : x
2. Step 2: Convert to fraction form
   39,405.38/87,557.63 = 87,557.63/x
3. Step 3: Cross multiply
   39,405.38x = 87,557.63 × 87,557.63
4. Step 4: Simplify right side
   39,405.38x = 7,666,337,695.64
5. Step 5: Solve for x
   x = 7,666,337,695.64/39,405.38
6. Step 6: Final answer
   x = 194,550.56