Finding the Third Proportional to 340,730 and 743,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,730 : 743,349.50 = 743,349.50 : x
2. Step 2: Convert to fraction form
   340,730/743,349.50 = 743,349.50/x
3. Step 3: Cross multiply
   340,730x = 743,349.50 × 743,349.50
4. Step 4: Simplify right side
   340,730x = 552,568,479,150.25
5. Step 5: Solve for x
   x = 552,568,479,150.25/340,730
6. Step 6: Final answer
   x = 1,621,719.48