Finding the Third Proportional to 721,896 and 1,009,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   721,896 : 1,009,315.50 = 1,009,315.50 : x
2. Step 2: Convert to fraction form
   721,896/1,009,315.50 = 1,009,315.50/x
3. Step 3: Cross multiply
   721,896x = 1,009,315.50 × 1,009,315.50
4. Step 4: Simplify right side
   721,896x = 1,018,717,778,540.25
5. Step 5: Solve for x
   x = 1,018,717,778,540.25/721,896
6. Step 6: Final answer
   x = 1,411,169.72