Finding the Third Proportional to 286,195.50 and 453,078

Step by Step Solution

1. Step 1: Write the proportion equation
   286,195.50 : 453,078 = 453,078 : x
2. Step 2: Convert to fraction form
   286,195.50/453,078 = 453,078/x
3. Step 3: Cross multiply
   286,195.50x = 453,078 × 453,078
4. Step 4: Simplify right side
   286,195.50x = 205,279,674,084
5. Step 5: Solve for x
   x = 205,279,674,084/286,195.50
6. Step 6: Final answer
   x = 717,270.80