Finding the Third Proportional to 39,642 and 60,718.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,642 : 60,718.50 = 60,718.50 : x
2. Step 2: Convert to fraction form
   39,642/60,718.50 = 60,718.50/x
3. Step 3: Cross multiply
   39,642x = 60,718.50 × 60,718.50
4. Step 4: Simplify right side
   39,642x = 3,686,736,242.25
5. Step 5: Solve for x
   x = 3,686,736,242.25/39,642
6. Step 6: Final answer
   x = 93,000.76