Finding the Third Proportional to 72,468 and 108,486

Step by Step Solution

1. Step 1: Write the proportion equation
   72,468 : 108,486 = 108,486 : x
2. Step 2: Convert to fraction form
   72,468/108,486 = 108,486/x
3. Step 3: Cross multiply
   72,468x = 108,486 × 108,486
4. Step 4: Simplify right side
   72,468x = 11,769,212,196
5. Step 5: Solve for x
   x = 11,769,212,196/72,468
6. Step 6: Final answer
   x = 162,405.64