Finding the Third Proportional to 347,739 and 741,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   347,739 : 741,409.50 = 741,409.50 : x
2. Step 2: Convert to fraction form
   347,739/741,409.50 = 741,409.50/x
3. Step 3: Cross multiply
   347,739x = 741,409.50 × 741,409.50
4. Step 4: Simplify right side
   347,739x = 549,688,046,690.25
5. Step 5: Solve for x
   x = 549,688,046,690.25/347,739
6. Step 6: Final answer
   x = 1,580,748.91