Finding the Third Proportional to 89,194 and 121,488

Step by Step Solution

1. Step 1: Write the proportion equation
   89,194 : 121,488 = 121,488 : x
2. Step 2: Convert to fraction form
   89,194/121,488 = 121,488/x
3. Step 3: Cross multiply
   89,194x = 121,488 × 121,488
4. Step 4: Simplify right side
   89,194x = 14,759,334,144
5. Step 5: Solve for x
   x = 14,759,334,144/89,194
6. Step 6: Final answer
   x = 165,474.52