Finding the Third Proportional to 72,492 and 147,028

Step by Step Solution

1. Step 1: Write the proportion equation
   72,492 : 147,028 = 147,028 : x
2. Step 2: Convert to fraction form
   72,492/147,028 = 147,028/x
3. Step 3: Cross multiply
   72,492x = 147,028 × 147,028
4. Step 4: Simplify right side
   72,492x = 21,617,232,784
5. Step 5: Solve for x
   x = 21,617,232,784/72,492
6. Step 6: Final answer
   x = 298,201.63