Finding the Third Proportional to 16,690.50 and 38,810.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,690.50 : 38,810.25 = 38,810.25 : x
2. Step 2: Convert to fraction form
   16,690.50/38,810.25 = 38,810.25/x
3. Step 3: Cross multiply
   16,690.50x = 38,810.25 × 38,810.25
4. Step 4: Simplify right side
   16,690.50x = 1,506,235,505.06
5. Step 5: Solve for x
   x = 1,506,235,505.06/16,690.50
6. Step 6: Final answer
   x = 90,245.08