Finding the Third Proportional to 74,190 and 111,429

Step by Step Solution

1. Step 1: Write the proportion equation
   74,190 : 111,429 = 111,429 : x
2. Step 2: Convert to fraction form
   74,190/111,429 = 111,429/x
3. Step 3: Cross multiply
   74,190x = 111,429 × 111,429
4. Step 4: Simplify right side
   74,190x = 12,416,422,041
5. Step 5: Solve for x
   x = 12,416,422,041/74,190
6. Step 6: Final answer
   x = 167,359.78