Finding the Third Proportional to 17,879.77 and 38,938.32

Step by Step Solution

1. Step 1: Write the proportion equation
   17,879.77 : 38,938.32 = 38,938.32 : x
2. Step 2: Convert to fraction form
   17,879.77/38,938.32 = 38,938.32/x
3. Step 3: Cross multiply
   17,879.77x = 38,938.32 × 38,938.32
4. Step 4: Simplify right side
   17,879.77x = 1,516,192,579.62
5. Step 5: Solve for x
   x = 1,516,192,579.62/17,879.77
6. Step 6: Final answer
   x = 84,799.35