Finding the Third Proportional to 42,204.38 and 90,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,204.38 : 90,058.50 = 90,058.50 : x
2. Step 2: Convert to fraction form
   42,204.38/90,058.50 = 90,058.50/x
3. Step 3: Cross multiply
   42,204.38x = 90,058.50 × 90,058.50
4. Step 4: Simplify right side
   42,204.38x = 8,110,533,422.25
5. Step 5: Solve for x
   x = 8,110,533,422.25/42,204.38
6. Step 6: Final answer
   x = 192,172.81