Finding the Third Proportional to 722,172 and 1,009,608

Step by Step Solution

1. Step 1: Write the proportion equation
   722,172 : 1,009,608 = 1,009,608 : x
2. Step 2: Convert to fraction form
   722,172/1,009,608 = 1,009,608/x
3. Step 3: Cross multiply
   722,172x = 1,009,608 × 1,009,608
4. Step 4: Simplify right side
   722,172x = 1,019,308,313,664
5. Step 5: Solve for x
   x = 1,019,308,313,664/722,172
6. Step 6: Final answer
   x = 1,411,448.12