Finding the Third Proportional to 721,412 and 1,567,240

Step by Step Solution

1. Step 1: Write the proportion equation
   721,412 : 1,567,240 = 1,567,240 : x
2. Step 2: Convert to fraction form
   721,412/1,567,240 = 1,567,240/x
3. Step 3: Cross multiply
   721,412x = 1,567,240 × 1,567,240
4. Step 4: Simplify right side
   721,412x = 2,456,241,217,600
5. Step 5: Solve for x
   x = 2,456,241,217,600/721,412
6. Step 6: Final answer
   x = 3,404,769.01