Finding the Third Proportional to 728,154 and 1,139,752

Step by Step Solution

1. Step 1: Write the proportion equation
   728,154 : 1,139,752 = 1,139,752 : x
2. Step 2: Convert to fraction form
   728,154/1,139,752 = 1,139,752/x
3. Step 3: Cross multiply
   728,154x = 1,139,752 × 1,139,752
4. Step 4: Simplify right side
   728,154x = 1,299,034,621,504
5. Step 5: Solve for x
   x = 1,299,034,621,504/728,154
6. Step 6: Final answer
   x = 1,784,010.83