Finding the Third Proportional to 354,712.50 and 726,000

Step by Step Solution

1. Step 1: Write the proportion equation
   354,712.50 : 726,000 = 726,000 : x
2. Step 2: Convert to fraction form
   354,712.50/726,000 = 726,000/x
3. Step 3: Cross multiply
   354,712.50x = 726,000 × 726,000
4. Step 4: Simplify right side
   354,712.50x = 527,076,000,000
5. Step 5: Solve for x
   x = 527,076,000,000/354,712.50
6. Step 6: Final answer
   x = 1,485,924.52