Finding the Third Proportional to 132,060 and 285,158

Step by Step Solution

1. Step 1: Write the proportion equation
   132,060 : 285,158 = 285,158 : x
2. Step 2: Convert to fraction form
   132,060/285,158 = 285,158/x
3. Step 3: Cross multiply
   132,060x = 285,158 × 285,158
4. Step 4: Simplify right side
   132,060x = 81,315,084,964
5. Step 5: Solve for x
   x = 81,315,084,964/132,060
6. Step 6: Final answer
   x = 615,743.49