Finding the Third Proportional to 291,498 and 443,295

Step by Step Solution

1. Step 1: Write the proportion equation
   291,498 : 443,295 = 443,295 : x
2. Step 2: Convert to fraction form
   291,498/443,295 = 443,295/x
3. Step 3: Cross multiply
   291,498x = 443,295 × 443,295
4. Step 4: Simplify right side
   291,498x = 196,510,457,025
5. Step 5: Solve for x
   x = 196,510,457,025/291,498
6. Step 6: Final answer
   x = 674,139.98