Finding the Third Proportional to 291,540.50 and 449,764

Step by Step Solution

1. Step 1: Write the proportion equation
   291,540.50 : 449,764 = 449,764 : x
2. Step 2: Convert to fraction form
   291,540.50/449,764 = 449,764/x
3. Step 3: Cross multiply
   291,540.50x = 449,764 × 449,764
4. Step 4: Simplify right side
   291,540.50x = 202,287,655,696
5. Step 5: Solve for x
   x = 202,287,655,696/291,540.50
6. Step 6: Final answer
   x = 693,857.82