Finding the Third Proportional to 28,722 and 60,853

Step by Step Solution

1. Step 1: Write the proportion equation
   28,722 : 60,853 = 60,853 : x
2. Step 2: Convert to fraction form
   28,722/60,853 = 60,853/x
3. Step 3: Cross multiply
   28,722x = 60,853 × 60,853
4. Step 4: Simplify right side
   28,722x = 3,703,087,609
5. Step 5: Solve for x
   x = 3,703,087,609/28,722
6. Step 6: Final answer
   x = 128,928.61