Finding the Third Proportional to 28,868.63 and 63,249.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,868.63 : 63,249.75 = 63,249.75 : x
2. Step 2: Convert to fraction form
   28,868.63/63,249.75 = 63,249.75/x
3. Step 3: Cross multiply
   28,868.63x = 63,249.75 × 63,249.75
4. Step 4: Simplify right side
   28,868.63x = 4,000,530,875.06
5. Step 5: Solve for x
   x = 4,000,530,875.06/28,868.63
6. Step 6: Final answer
   x = 138,577.12