Finding the Third Proportional to 561,003 and 1,217,118

Step by Step Solution

1. Step 1: Write the proportion equation
   561,003 : 1,217,118 = 1,217,118 : x
2. Step 2: Convert to fraction form
   561,003/1,217,118 = 1,217,118/x
3. Step 3: Cross multiply
   561,003x = 1,217,118 × 1,217,118
4. Step 4: Simplify right side
   561,003x = 1,481,376,225,924
5. Step 5: Solve for x
   x = 1,481,376,225,924/561,003
6. Step 6: Final answer
   x = 2,640,585.21