Finding the Third Proportional to 7,490.39 and 16,390.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,490.39 : 16,390.05 = 16,390.05 : x
2. Step 2: Convert to fraction form
   7,490.39/16,390.05 = 16,390.05/x
3. Step 3: Cross multiply
   7,490.39x = 16,390.05 × 16,390.05
4. Step 4: Simplify right side
   7,490.39x = 268,633,892.66
5. Step 5: Solve for x
   x = 268,633,892.66/7,490.39
6. Step 6: Final answer
   x = 35,863.80