Finding the Third Proportional to 485,634 and 735,223.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,634 : 735,223.50 = 735,223.50 : x
2. Step 2: Convert to fraction form
   485,634/735,223.50 = 735,223.50/x
3. Step 3: Cross multiply
   485,634x = 735,223.50 × 735,223.50
4. Step 4: Simplify right side
   485,634x = 540,553,594,952.25
5. Step 5: Solve for x
   x = 540,553,594,952.25/485,634
6. Step 6: Final answer
   x = 1,113,088.45