Finding the Third Proportional to 73,920 and 153,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,920 : 153,088.50 = 153,088.50 : x
2. Step 2: Convert to fraction form
   73,920/153,088.50 = 153,088.50/x
3. Step 3: Cross multiply
   73,920x = 153,088.50 × 153,088.50
4. Step 4: Simplify right side
   73,920x = 23,436,088,832.25
5. Step 5: Solve for x
   x = 23,436,088,832.25/73,920
6. Step 6: Final answer
   x = 317,046.66