Finding the Third Proportional to 158,742 and 343,360.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,742 : 343,360.50 = 343,360.50 : x
2. Step 2: Convert to fraction form
   158,742/343,360.50 = 343,360.50/x
3. Step 3: Cross multiply
   158,742x = 343,360.50 × 343,360.50
4. Step 4: Simplify right side
   158,742x = 117,896,432,960.25
5. Step 5: Solve for x
   x = 117,896,432,960.25/158,742
6. Step 6: Final answer
   x = 742,692.12