Finding the Third Proportional to 215,662.50 and 469,113

Step by Step Solution

1. Step 1: Write the proportion equation
   215,662.50 : 469,113 = 469,113 : x
2. Step 2: Convert to fraction form
   215,662.50/469,113 = 469,113/x
3. Step 3: Cross multiply
   215,662.50x = 469,113 × 469,113
4. Step 4: Simplify right side
   215,662.50x = 220,067,006,769
5. Step 5: Solve for x
   x = 220,067,006,769/215,662.50
6. Step 6: Final answer
   x = 1,020,423.15