Finding the Third Proportional to 560,406 and 1,216,072

Step by Step Solution

1. Step 1: Write the proportion equation
   560,406 : 1,216,072 = 1,216,072 : x
2. Step 2: Convert to fraction form
   560,406/1,216,072 = 1,216,072/x
3. Step 3: Cross multiply
   560,406x = 1,216,072 × 1,216,072
4. Step 4: Simplify right side
   560,406x = 1,478,831,109,184
5. Step 5: Solve for x
   x = 1,478,831,109,184/560,406
6. Step 6: Final answer
   x = 2,638,856.67