Finding the Third Proportional to 219,312 and 469,760

Step by Step Solution

1. Step 1: Write the proportion equation
   219,312 : 469,760 = 469,760 : x
2. Step 2: Convert to fraction form
   219,312/469,760 = 469,760/x
3. Step 3: Cross multiply
   219,312x = 469,760 × 469,760
4. Step 4: Simplify right side
   219,312x = 220,674,457,600
5. Step 5: Solve for x
   x = 220,674,457,600/219,312
6. Step 6: Final answer
   x = 1,006,212.42