Finding the Third Proportional to 308,308.50 and 672,496.25

Step by Step Solution

1. Step 1: Write the proportion equation
   308,308.50 : 672,496.25 = 672,496.25 : x
2. Step 2: Convert to fraction form
   308,308.50/672,496.25 = 672,496.25/x
3. Step 3: Cross multiply
   308,308.50x = 672,496.25 × 672,496.25
4. Step 4: Simplify right side
   308,308.50x = 452,251,206,264.06
5. Step 5: Solve for x
   x = 452,251,206,264.06/308,308.50
6. Step 6: Final answer
   x = 1,466,878.81