Finding the Third Proportional to 161,499 and 247,898

Step by Step Solution

1. Step 1: Write the proportion equation
   161,499 : 247,898 = 247,898 : x
2. Step 2: Convert to fraction form
   161,499/247,898 = 247,898/x
3. Step 3: Cross multiply
   161,499x = 247,898 × 247,898
4. Step 4: Simplify right side
   161,499x = 61,453,418,404
5. Step 5: Solve for x
   x = 61,453,418,404/161,499
6. Step 6: Final answer
   x = 380,518.88