Finding the Third Proportional to 85,442 and 187,340

Step by Step Solution

1. Step 1: Write the proportion equation
   85,442 : 187,340 = 187,340 : x
2. Step 2: Convert to fraction form
   85,442/187,340 = 187,340/x
3. Step 3: Cross multiply
   85,442x = 187,340 × 187,340
4. Step 4: Simplify right side
   85,442x = 35,096,275,600
5. Step 5: Solve for x
   x = 35,096,275,600/85,442
6. Step 6: Final answer
   x = 410,761.40