Finding the Third Proportional to 42,207.75 and 89,164.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,207.75 : 89,164.13 = 89,164.13 : x
2. Step 2: Convert to fraction form
   42,207.75/89,164.13 = 89,164.13/x
3. Step 3: Cross multiply
   42,207.75x = 89,164.13 × 89,164.13
4. Step 4: Simplify right side
   42,207.75x = 7,950,241,187.02
5. Step 5: Solve for x
   x = 7,950,241,187.02/42,207.75
6. Step 6: Final answer
   x = 188,359.75