Finding the Third Proportional to 207,412 and 443,254

Step by Step Solution

1. Step 1: Write the proportion equation
   207,412 : 443,254 = 443,254 : x
2. Step 2: Convert to fraction form
   207,412/443,254 = 443,254/x
3. Step 3: Cross multiply
   207,412x = 443,254 × 443,254
4. Step 4: Simplify right side
   207,412x = 196,474,108,516
5. Step 5: Solve for x
   x = 196,474,108,516/207,412
6. Step 6: Final answer
   x = 947,264.91