Finding the Third Proportional to 19,687.50 and 42,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,687.50 : 42,655.50 = 42,655.50 : x
2. Step 2: Convert to fraction form
   19,687.50/42,655.50 = 42,655.50/x
3. Step 3: Cross multiply
   19,687.50x = 42,655.50 × 42,655.50
4. Step 4: Simplify right side
   19,687.50x = 1,819,491,680.25
5. Step 5: Solve for x
   x = 1,819,491,680.25/19,687.50
6. Step 6: Final answer
   x = 92,418.63