Finding the Third Proportional to 64,875.50 and 82,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,875.50 : 82,891.50 = 82,891.50 : x
2. Step 2: Convert to fraction form
   64,875.50/82,891.50 = 82,891.50/x
3. Step 3: Cross multiply
   64,875.50x = 82,891.50 × 82,891.50
4. Step 4: Simplify right side
   64,875.50x = 6,871,000,772.25
5. Step 5: Solve for x
   x = 6,871,000,772.25/64,875.50
6. Step 6: Final answer
   x = 105,910.56