Finding the Third Proportional to 39,479.50 and 59,690

Step by Step Solution

1. Step 1: Write the proportion equation
   39,479.50 : 59,690 = 59,690 : x
2. Step 2: Convert to fraction form
   39,479.50/59,690 = 59,690/x
3. Step 3: Cross multiply
   39,479.50x = 59,690 × 59,690
4. Step 4: Simplify right side
   39,479.50x = 3,562,896,100
5. Step 5: Solve for x
   x = 3,562,896,100/39,479.50
6. Step 6: Final answer
   x = 90,246.74