Finding the Third Proportional to 728,076 and 1,139,652

Step by Step Solution

1. Step 1: Write the proportion equation
   728,076 : 1,139,652 = 1,139,652 : x
2. Step 2: Convert to fraction form
   728,076/1,139,652 = 1,139,652/x
3. Step 3: Cross multiply
   728,076x = 1,139,652 × 1,139,652
4. Step 4: Simplify right side
   728,076x = 1,298,806,681,104
5. Step 5: Solve for x
   x = 1,298,806,681,104/728,076
6. Step 6: Final answer
   x = 1,783,888.88