Finding the Third Proportional to 72,480 and 151,488

Step by Step Solution

1. Step 1: Write the proportion equation
   72,480 : 151,488 = 151,488 : x
2. Step 2: Convert to fraction form
   72,480/151,488 = 151,488/x
3. Step 3: Cross multiply
   72,480x = 151,488 × 151,488
4. Step 4: Simplify right side
   72,480x = 22,948,614,144
5. Step 5: Solve for x
   x = 22,948,614,144/72,480
6. Step 6: Final answer
   x = 316,619.95