Finding the Third Proportional to 868,272 and 1,357,968

Step by Step Solution

1. Step 1: Write the proportion equation
   868,272 : 1,357,968 = 1,357,968 : x
2. Step 2: Convert to fraction form
   868,272/1,357,968 = 1,357,968/x
3. Step 3: Cross multiply
   868,272x = 1,357,968 × 1,357,968
4. Step 4: Simplify right side
   868,272x = 1,844,077,089,024
5. Step 5: Solve for x
   x = 1,844,077,089,024/868,272
6. Step 6: Final answer
   x = 2,123,847.24