Finding the Third Proportional to 158,492 and 345,416

Step by Step Solution

1. Step 1: Write the proportion equation
   158,492 : 345,416 = 345,416 : x
2. Step 2: Convert to fraction form
   158,492/345,416 = 345,416/x
3. Step 3: Cross multiply
   158,492x = 345,416 × 345,416
4. Step 4: Simplify right side
   158,492x = 119,312,213,056
5. Step 5: Solve for x
   x = 119,312,213,056/158,492
6. Step 6: Final answer
   x = 752,796.44