Finding the Third Proportional to 5,602.50 and 9,898.88

Step by Step Solution

1. Step 1: Write the proportion equation
   5,602.50 : 9,898.88 = 9,898.88 : x
2. Step 2: Convert to fraction form
   5,602.50/9,898.88 = 9,898.88/x
3. Step 3: Cross multiply
   5,602.50x = 9,898.88 × 9,898.88
4. Step 4: Simplify right side
   5,602.50x = 97,987,726.27
5. Step 5: Solve for x
   x = 97,987,726.27/5,602.50
6. Step 6: Final answer
   x = 17,490.00