Finding the Third Proportional to 721,312 and 1,567,040

Step by Step Solution

1. Step 1: Write the proportion equation
   721,312 : 1,567,040 = 1,567,040 : x
2. Step 2: Convert to fraction form
   721,312/1,567,040 = 1,567,040/x
3. Step 3: Cross multiply
   721,312x = 1,567,040 × 1,567,040
4. Step 4: Simplify right side
   721,312x = 2,455,614,361,600
5. Step 5: Solve for x
   x = 2,455,614,361,600/721,312
6. Step 6: Final answer
   x = 3,404,371.98