Finding the Third Proportional to 561,064 and 1,207,688

Step by Step Solution

1. Step 1: Write the proportion equation
   561,064 : 1,207,688 = 1,207,688 : x
2. Step 2: Convert to fraction form
   561,064/1,207,688 = 1,207,688/x
3. Step 3: Cross multiply
   561,064x = 1,207,688 × 1,207,688
4. Step 4: Simplify right side
   561,064x = 1,458,510,305,344
5. Step 5: Solve for x
   x = 1,458,510,305,344/561,064
6. Step 6: Final answer
   x = 2,599,543.56