Finding the Third Proportional to 495,238.50 and 744,040

Step by Step Solution

1. Step 1: Write the proportion equation
   495,238.50 : 744,040 = 744,040 : x
2. Step 2: Convert to fraction form
   495,238.50/744,040 = 744,040/x
3. Step 3: Cross multiply
   495,238.50x = 744,040 × 744,040
4. Step 4: Simplify right side
   495,238.50x = 553,595,521,600
5. Step 5: Solve for x
   x = 553,595,521,600/495,238.50
6. Step 6: Final answer
   x = 1,117,836.20