Finding the Third Proportional to 723,321 and 1,555,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   723,321 : 1,555,513.50 = 1,555,513.50 : x
2. Step 2: Convert to fraction form
   723,321/1,555,513.50 = 1,555,513.50/x
3. Step 3: Cross multiply
   723,321x = 1,555,513.50 × 1,555,513.50
4. Step 4: Simplify right side
   723,321x = 2,419,622,248,682.25
5. Step 5: Solve for x
   x = 2,419,622,248,682.25/723,321
6. Step 6: Final answer
   x = 3,345,156.92