Finding the Third Proportional to 160,457.50 and 343,686

Step by Step Solution

1. Step 1: Write the proportion equation
   160,457.50 : 343,686 = 343,686 : x
2. Step 2: Convert to fraction form
   160,457.50/343,686 = 343,686/x
3. Step 3: Cross multiply
   160,457.50x = 343,686 × 343,686
4. Step 4: Simplify right side
   160,457.50x = 118,120,066,596
5. Step 5: Solve for x
   x = 118,120,066,596/160,457.50
6. Step 6: Final answer
   x = 736,145.50