Finding the Third Proportional to 721,240 and 1,081,968

Step by Step Solution

1. Step 1: Write the proportion equation
   721,240 : 1,081,968 = 1,081,968 : x
2. Step 2: Convert to fraction form
   721,240/1,081,968 = 1,081,968/x
3. Step 3: Cross multiply
   721,240x = 1,081,968 × 1,081,968
4. Step 4: Simplify right side
   721,240x = 1,170,654,753,024
5. Step 5: Solve for x
   x = 1,170,654,753,024/721,240
6. Step 6: Final answer
   x = 1,623,114.02