Finding the Third Proportional to 456,157.50 and 657,078

Step by Step Solution

1. Step 1: Write the proportion equation
   456,157.50 : 657,078 = 657,078 : x
2. Step 2: Convert to fraction form
   456,157.50/657,078 = 657,078/x
3. Step 3: Cross multiply
   456,157.50x = 657,078 × 657,078
4. Step 4: Simplify right side
   456,157.50x = 431,751,498,084
5. Step 5: Solve for x
   x = 431,751,498,084/456,157.50
6. Step 6: Final answer
   x = 946,496.55