Finding the Third Proportional to 754,008 and 1,638,912

Step by Step Solution

1. Step 1: Write the proportion equation
   754,008 : 1,638,912 = 1,638,912 : x
2. Step 2: Convert to fraction form
   754,008/1,638,912 = 1,638,912/x
3. Step 3: Cross multiply
   754,008x = 1,638,912 × 1,638,912
4. Step 4: Simplify right side
   754,008x = 2,686,032,543,744
5. Step 5: Solve for x
   x = 2,686,032,543,744/754,008
6. Step 6: Final answer
   x = 3,562,339.58