Finding the Third Proportional to 529,707 and 806,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   529,707 : 806,800.50 = 806,800.50 : x
2. Step 2: Convert to fraction form
   529,707/806,800.50 = 806,800.50/x
3. Step 3: Cross multiply
   529,707x = 806,800.50 × 806,800.50
4. Step 4: Simplify right side
   529,707x = 650,927,046,800.25
5. Step 5: Solve for x
   x = 650,927,046,800.25/529,707
6. Step 6: Final answer
   x = 1,228,843.58