Finding the Third Proportional to 28,702 and 60,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,702 : 60,818.50 = 60,818.50 : x
2. Step 2: Convert to fraction form
   28,702/60,818.50 = 60,818.50/x
3. Step 3: Cross multiply
   28,702x = 60,818.50 × 60,818.50
4. Step 4: Simplify right side
   28,702x = 3,698,889,942.25
5. Step 5: Solve for x
   x = 3,698,889,942.25/28,702
6. Step 6: Final answer
   x = 128,872.20