Finding the Third Proportional to 52,878 and 80,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,878 : 80,992.50 = 80,992.50 : x
2. Step 2: Convert to fraction form
   52,878/80,992.50 = 80,992.50/x
3. Step 3: Cross multiply
   52,878x = 80,992.50 × 80,992.50
4. Step 4: Simplify right side
   52,878x = 6,559,785,056.25
5. Step 5: Solve for x
   x = 6,559,785,056.25/52,878
6. Step 6: Final answer
   x = 124,055.09