Finding the Third Proportional to 220,436 and 469,712

Step by Step Solution

1. Step 1: Write the proportion equation
   220,436 : 469,712 = 469,712 : x
2. Step 2: Convert to fraction form
   220,436/469,712 = 469,712/x
3. Step 3: Cross multiply
   220,436x = 469,712 × 469,712
4. Step 4: Simplify right side
   220,436x = 220,629,362,944
5. Step 5: Solve for x
   x = 220,629,362,944/220,436
6. Step 6: Final answer
   x = 1,000,877.18