Finding the Third Proportional to 869,864 and 1,224,968

Step by Step Solution

1. Step 1: Write the proportion equation
   869,864 : 1,224,968 = 1,224,968 : x
2. Step 2: Convert to fraction form
   869,864/1,224,968 = 1,224,968/x
3. Step 3: Cross multiply
   869,864x = 1,224,968 × 1,224,968
4. Step 4: Simplify right side
   869,864x = 1,500,546,601,024
5. Step 5: Solve for x
   x = 1,500,546,601,024/869,864
6. Step 6: Final answer
   x = 1,725,035.87