Finding the Third Proportional to 28,521 and 58,860

Step by Step Solution

1. Step 1: Write the proportion equation
   28,521 : 58,860 = 58,860 : x
2. Step 2: Convert to fraction form
   28,521/58,860 = 58,860/x
3. Step 3: Cross multiply
   28,521x = 58,860 × 58,860
4. Step 4: Simplify right side
   28,521x = 3,464,499,600
5. Step 5: Solve for x
   x = 3,464,499,600/28,521
6. Step 6: Final answer
   x = 121,471.88