Finding the Third Proportional to 42,707.25 and 90,335.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,707.25 : 90,335.25 = 90,335.25 : x
2. Step 2: Convert to fraction form
   42,707.25/90,335.25 = 90,335.25/x
3. Step 3: Cross multiply
   42,707.25x = 90,335.25 × 90,335.25
4. Step 4: Simplify right side
   42,707.25x = 8,160,457,392.56
5. Step 5: Solve for x
   x = 8,160,457,392.56/42,707.25
6. Step 6: Final answer
   x = 191,078.97