Finding the Third Proportional to 158,120 and 345,736

Step by Step Solution

1. Step 1: Write the proportion equation
   158,120 : 345,736 = 345,736 : x
2. Step 2: Convert to fraction form
   158,120/345,736 = 345,736/x
3. Step 3: Cross multiply
   158,120x = 345,736 × 345,736
4. Step 4: Simplify right side
   158,120x = 119,533,381,696
5. Step 5: Solve for x
   x = 119,533,381,696/158,120
6. Step 6: Final answer
   x = 755,966.24