Finding the Third Proportional to 30,768.61 and 63,669.80

Step by Step Solution

1. Step 1: Write the proportion equation
   30,768.61 : 63,669.80 = 63,669.80 : x
2. Step 2: Convert to fraction form
   30,768.61/63,669.80 = 63,669.80/x
3. Step 3: Cross multiply
   30,768.61x = 63,669.80 × 63,669.80
4. Step 4: Simplify right side
   30,768.61x = 4,053,843,034.10
5. Step 5: Solve for x
   x = 4,053,843,034.10/30,768.61
6. Step 6: Final answer
   x = 131,752.56