Finding the Third Proportional to 17,478.91 and 38,904.68

Step by Step Solution

1. Step 1: Write the proportion equation
   17,478.91 : 38,904.68 = 38,904.68 : x
2. Step 2: Convert to fraction form
   17,478.91/38,904.68 = 38,904.68/x
3. Step 3: Cross multiply
   17,478.91x = 38,904.68 × 38,904.68
4. Step 4: Simplify right side
   17,478.91x = 1,513,574,101.59
5. Step 5: Solve for x
   x = 1,513,574,101.59/17,478.91
6. Step 6: Final answer
   x = 86,594.29