Finding the Third Proportional to 420,088.50 and 921,825

Step by Step Solution

1. Step 1: Write the proportion equation
   420,088.50 : 921,825 = 921,825 : x
2. Step 2: Convert to fraction form
   420,088.50/921,825 = 921,825/x
3. Step 3: Cross multiply
   420,088.50x = 921,825 × 921,825
4. Step 4: Simplify right side
   420,088.50x = 849,761,330,625
5. Step 5: Solve for x
   x = 849,761,330,625/420,088.50
6. Step 6: Final answer
   x = 2,022,815.03