Finding the Third Proportional to 132,090 and 200,658

Step by Step Solution

1. Step 1: Write the proportion equation
   132,090 : 200,658 = 200,658 : x
2. Step 2: Convert to fraction form
   132,090/200,658 = 200,658/x
3. Step 3: Cross multiply
   132,090x = 200,658 × 200,658
4. Step 4: Simplify right side
   132,090x = 40,263,632,964
5. Step 5: Solve for x
   x = 40,263,632,964/132,090
6. Step 6: Final answer
   x = 304,819.69