Finding the Third Proportional to 561,466 and 1,217,516

Step by Step Solution

1. Step 1: Write the proportion equation
   561,466 : 1,217,516 = 1,217,516 : x
2. Step 2: Convert to fraction form
   561,466/1,217,516 = 1,217,516/x
3. Step 3: Cross multiply
   561,466x = 1,217,516 × 1,217,516
4. Step 4: Simplify right side
   561,466x = 1,482,345,210,256
5. Step 5: Solve for x
   x = 1,482,345,210,256/561,466
6. Step 6: Final answer
   x = 2,640,133.53