Finding the Third Proportional to 308,307.75 and 672,495

Step by Step Solution

1. Step 1: Write the proportion equation
   308,307.75 : 672,495 = 672,495 : x
2. Step 2: Convert to fraction form
   308,307.75/672,495 = 672,495/x
3. Step 3: Cross multiply
   308,307.75x = 672,495 × 672,495
4. Step 4: Simplify right side
   308,307.75x = 452,249,525,025
5. Step 5: Solve for x
   x = 452,249,525,025/308,307.75
6. Step 6: Final answer
   x = 1,466,876.93