Finding the Third Proportional to 723,109.50 and 1,380,609

Step by Step Solution

1. Step 1: Write the proportion equation
   723,109.50 : 1,380,609 = 1,380,609 : x
2. Step 2: Convert to fraction form
   723,109.50/1,380,609 = 1,380,609/x
3. Step 3: Cross multiply
   723,109.50x = 1,380,609 × 1,380,609
4. Step 4: Simplify right side
   723,109.50x = 1,906,081,210,881
5. Step 5: Solve for x
   x = 1,906,081,210,881/723,109.50
6. Step 6: Final answer
   x = 2,635,951.00