Finding the Third Proportional to 216,873.56 and 469,943.72

Step by Step Solution

1. Step 1: Write the proportion equation
   216,873.56 : 469,943.72 = 469,943.72 : x
2. Step 2: Convert to fraction form
   216,873.56/469,943.72 = 469,943.72/x
3. Step 3: Cross multiply
   216,873.56x = 469,943.72 × 469,943.72
4. Step 4: Simplify right side
   216,873.56x = 220,847,098,792.58
5. Step 5: Solve for x
   x = 220,847,098,792.58/216,873.56
6. Step 6: Final answer
   x = 1,018,321.90