Finding the Third Proportional to 72,320 and 110,784

Step by Step Solution

1. Step 1: Write the proportion equation
   72,320 : 110,784 = 110,784 : x
2. Step 2: Convert to fraction form
   72,320/110,784 = 110,784/x
3. Step 3: Cross multiply
   72,320x = 110,784 × 110,784
4. Step 4: Simplify right side
   72,320x = 12,273,094,656
5. Step 5: Solve for x
   x = 12,273,094,656/72,320
6. Step 6: Final answer
   x = 169,705.40