Finding the Third Proportional to 17,800.88 and 42,020.77

Step by Step Solution

1. Step 1: Write the proportion equation
   17,800.88 : 42,020.77 = 42,020.77 : x
2. Step 2: Convert to fraction form
   17,800.88/42,020.77 = 42,020.77/x
3. Step 3: Cross multiply
   17,800.88x = 42,020.77 × 42,020.77
4. Step 4: Simplify right side
   17,800.88x = 1,765,744,743.71
5. Step 5: Solve for x
   x = 1,765,744,743.71/17,800.88
6. Step 6: Final answer
   x = 99,194.27