Finding the Third Proportional to 420,582 and 922,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   420,582 : 922,588.50 = 922,588.50 : x
2. Step 2: Convert to fraction form
   420,582/922,588.50 = 922,588.50/x
3. Step 3: Cross multiply
   420,582x = 922,588.50 × 922,588.50
4. Step 4: Simplify right side
   420,582x = 851,169,540,332.25
5. Step 5: Solve for x
   x = 851,169,540,332.25/420,582
6. Step 6: Final answer
   x = 2,023,789.75