Finding the Third Proportional to 343,360 and 745,830.50

Step by Step Solution

1. Step 1: Write the proportion equation
   343,360 : 745,830.50 = 745,830.50 : x
2. Step 2: Convert to fraction form
   343,360/745,830.50 = 745,830.50/x
3. Step 3: Cross multiply
   343,360x = 745,830.50 × 745,830.50
4. Step 4: Simplify right side
   343,360x = 556,263,134,730.25
5. Step 5: Solve for x
   x = 556,263,134,730.25/343,360
6. Step 6: Final answer
   x = 1,620,058.06