Finding the Third Proportional to 30,808.88 and 63,077.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,808.88 : 63,077.25 = 63,077.25 : x
2. Step 2: Convert to fraction form
   30,808.88/63,077.25 = 63,077.25/x
3. Step 3: Cross multiply
   30,808.88x = 63,077.25 × 63,077.25
4. Step 4: Simplify right side
   30,808.88x = 3,978,739,467.56
5. Step 5: Solve for x
   x = 3,978,739,467.56/30,808.88
6. Step 6: Final answer
   x = 129,142.64