Finding the Third Proportional to 545,288 and 1,117,768

Step by Step Solution

1. Step 1: Write the proportion equation
   545,288 : 1,117,768 = 1,117,768 : x
2. Step 2: Convert to fraction form
   545,288/1,117,768 = 1,117,768/x
3. Step 3: Cross multiply
   545,288x = 1,117,768 × 1,117,768
4. Step 4: Simplify right side
   545,288x = 1,249,405,301,824
5. Step 5: Solve for x
   x = 1,249,405,301,824/545,288
6. Step 6: Final answer
   x = 2,291,275.99