Finding the Third Proportional to 16,700.63 and 34,778.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,700.63 : 34,778.81 = 34,778.81 : x
2. Step 2: Convert to fraction form
   16,700.63/34,778.81 = 34,778.81/x
3. Step 3: Cross multiply
   16,700.63x = 34,778.81 × 34,778.81
4. Step 4: Simplify right side
   16,700.63x = 1,209,565,798.91
5. Step 5: Solve for x
   x = 1,209,565,798.91/16,700.63
6. Step 6: Final answer
   x = 72,426.38