Finding the Third Proportional to 7,816.50 and 16,657.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,816.50 : 16,657.88 = 16,657.88 : x
2. Step 2: Convert to fraction form
   7,816.50/16,657.88 = 16,657.88/x
3. Step 3: Cross multiply
   7,816.50x = 16,657.88 × 16,657.88
4. Step 4: Simplify right side
   7,816.50x = 277,484,799.52
5. Step 5: Solve for x
   x = 277,484,799.52/7,816.50
6. Step 6: Final answer
   x = 35,499.88