Finding the Third Proportional to 688,600 and 1,485,968

Step by Step Solution

1. Step 1: Write the proportion equation
   688,600 : 1,485,968 = 1,485,968 : x
2. Step 2: Convert to fraction form
   688,600/1,485,968 = 1,485,968/x
3. Step 3: Cross multiply
   688,600x = 1,485,968 × 1,485,968
4. Step 4: Simplify right side
   688,600x = 2,208,100,897,024
5. Step 5: Solve for x
   x = 2,208,100,897,024/688,600
6. Step 6: Final answer
   x = 3,206,652.48