Finding the Third Proportional to 560,142 and 1,209,222

Step by Step Solution

1. Step 1: Write the proportion equation
   560,142 : 1,209,222 = 1,209,222 : x
2. Step 2: Convert to fraction form
   560,142/1,209,222 = 1,209,222/x
3. Step 3: Cross multiply
   560,142x = 1,209,222 × 1,209,222
4. Step 4: Simplify right side
   560,142x = 1,462,217,845,284
5. Step 5: Solve for x
   x = 1,462,217,845,284/560,142
6. Step 6: Final answer
   x = 2,610,441.36