Finding the Third Proportional to 17,842.78 and 38,669.91

Step by Step Solution

1. Step 1: Write the proportion equation
   17,842.78 : 38,669.91 = 38,669.91 : x
2. Step 2: Convert to fraction form
   17,842.78/38,669.91 = 38,669.91/x
3. Step 3: Cross multiply
   17,842.78x = 38,669.91 × 38,669.91
4. Step 4: Simplify right side
   17,842.78x = 1,495,361,649.38
5. Step 5: Solve for x
   x = 1,495,361,649.38/17,842.78
6. Step 6: Final answer
   x = 83,807.65