Finding the Third Proportional to 344,090 and 809,670.50

Step by Step Solution

1. Step 1: Write the proportion equation
   344,090 : 809,670.50 = 809,670.50 : x
2. Step 2: Convert to fraction form
   344,090/809,670.50 = 809,670.50/x
3. Step 3: Cross multiply
   344,090x = 809,670.50 × 809,670.50
4. Step 4: Simplify right side
   344,090x = 655,566,318,570.25
5. Step 5: Solve for x
   x = 655,566,318,570.25/344,090
6. Step 6: Final answer
   x = 1,905,217.58