Finding the Third Proportional to 279,031.50 and 443,457

Step by Step Solution

1. Step 1: Write the proportion equation
   279,031.50 : 443,457 = 443,457 : x
2. Step 2: Convert to fraction form
   279,031.50/443,457 = 443,457/x
3. Step 3: Cross multiply
   279,031.50x = 443,457 × 443,457
4. Step 4: Simplify right side
   279,031.50x = 196,654,110,849
5. Step 5: Solve for x
   x = 196,654,110,849/279,031.50
6. Step 6: Final answer
   x = 704,773.87