Finding the Third Proportional to 728,152 and 1,139,749

Step by Step Solution

1. Step 1: Write the proportion equation
   728,152 : 1,139,749 = 1,139,749 : x
2. Step 2: Convert to fraction form
   728,152/1,139,749 = 1,139,749/x
3. Step 3: Cross multiply
   728,152x = 1,139,749 × 1,139,749
4. Step 4: Simplify right side
   728,152x = 1,299,027,783,001
5. Step 5: Solve for x
   x = 1,299,027,783,001/728,152
6. Step 6: Final answer
   x = 1,784,006.34