Finding the Third Proportional to 560,905 and 1,216,442

Step by Step Solution

1. Step 1: Write the proportion equation
   560,905 : 1,216,442 = 1,216,442 : x
2. Step 2: Convert to fraction form
   560,905/1,216,442 = 1,216,442/x
3. Step 3: Cross multiply
   560,905x = 1,216,442 × 1,216,442
4. Step 4: Simplify right side
   560,905x = 1,479,731,139,364
5. Step 5: Solve for x
   x = 1,479,731,139,364/560,905
6. Step 6: Final answer
   x = 2,638,113.65