Finding the Third Proportional to 264,491.50 and 402,273

Step by Step Solution

1. Step 1: Write the proportion equation
   264,491.50 : 402,273 = 402,273 : x
2. Step 2: Convert to fraction form
   264,491.50/402,273 = 402,273/x
3. Step 3: Cross multiply
   264,491.50x = 402,273 × 402,273
4. Step 4: Simplify right side
   264,491.50x = 161,823,566,529
5. Step 5: Solve for x
   x = 161,823,566,529/264,491.50
6. Step 6: Final answer
   x = 611,828.99