Finding the Third Proportional to 33,480 and 72,148

Step by Step Solution

1. Step 1: Write the proportion equation
   33,480 : 72,148 = 72,148 : x
2. Step 2: Convert to fraction form
   33,480/72,148 = 72,148/x
3. Step 3: Cross multiply
   33,480x = 72,148 × 72,148
4. Step 4: Simplify right side
   33,480x = 5,205,333,904
5. Step 5: Solve for x
   x = 5,205,333,904/33,480
6. Step 6: Final answer
   x = 155,475.92