Finding the Third Proportional to 63,150 and 139,475

Step by Step Solution

1. Step 1: Write the proportion equation
   63,150 : 139,475 = 139,475 : x
2. Step 2: Convert to fraction form
   63,150/139,475 = 139,475/x
3. Step 3: Cross multiply
   63,150x = 139,475 × 139,475
4. Step 4: Simplify right side
   63,150x = 19,453,275,625
5. Step 5: Solve for x
   x = 19,453,275,625/63,150
6. Step 6: Final answer
   x = 308,048.70