Finding the Third Proportional to 293,040 and 443,700

Step by Step Solution

1. Step 1: Write the proportion equation
   293,040 : 443,700 = 443,700 : x
2. Step 2: Convert to fraction form
   293,040/443,700 = 443,700/x
3. Step 3: Cross multiply
   293,040x = 443,700 × 443,700
4. Step 4: Simplify right side
   293,040x = 196,869,690,000
5. Step 5: Solve for x
   x = 196,869,690,000/293,040
6. Step 6: Final answer
   x = 671,818.49