Finding the Third Proportional to 42,540.19 and 90,669.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,540.19 : 90,669.38 = 90,669.38 : x
2. Step 2: Convert to fraction form
   42,540.19/90,669.38 = 90,669.38/x
3. Step 3: Cross multiply
   42,540.19x = 90,669.38 × 90,669.38
4. Step 4: Simplify right side
   42,540.19x = 8,220,935,562.89
5. Step 5: Solve for x
   x = 8,220,935,562.89/42,540.19
6. Step 6: Final answer
   x = 193,251.04