Finding the Third Proportional to 162,072 and 245,340

Step by Step Solution

1. Step 1: Write the proportion equation
   162,072 : 245,340 = 245,340 : x
2. Step 2: Convert to fraction form
   162,072/245,340 = 245,340/x
3. Step 3: Cross multiply
   162,072x = 245,340 × 245,340
4. Step 4: Simplify right side
   162,072x = 60,191,715,600
5. Step 5: Solve for x
   x = 60,191,715,600/162,072
6. Step 6: Final answer
   x = 371,388.74