Finding the Third Proportional to 343,380.94 and 745,849.69

Step by Step Solution

1. Step 1: Write the proportion equation
   343,380.94 : 745,849.69 = 745,849.69 : x
2. Step 2: Convert to fraction form
   343,380.94/745,849.69 = 745,849.69/x
3. Step 3: Cross multiply
   343,380.94x = 745,849.69 × 745,849.69
4. Step 4: Simplify right side
   343,380.94x = 556,291,756,343.85
5. Step 5: Solve for x
   x = 556,291,756,343.85/343,380.94
6. Step 6: Final answer
   x = 1,620,042.63