Finding the Third Proportional to 63,311.63 and 138,287.25

Step by Step Solution

1. Step 1: Write the proportion equation
   63,311.63 : 138,287.25 = 138,287.25 : x
2. Step 2: Convert to fraction form
   63,311.63/138,287.25 = 138,287.25/x
3. Step 3: Cross multiply
   63,311.63x = 138,287.25 × 138,287.25
4. Step 4: Simplify right side
   63,311.63x = 19,123,363,512.56
5. Step 5: Solve for x
   x = 19,123,363,512.56/63,311.63
6. Step 6: Final answer
   x = 302,051.38