Finding the Third Proportional to 561,558 and 1,200,300

Step by Step Solution

1. Step 1: Write the proportion equation
   561,558 : 1,200,300 = 1,200,300 : x
2. Step 2: Convert to fraction form
   561,558/1,200,300 = 1,200,300/x
3. Step 3: Cross multiply
   561,558x = 1,200,300 × 1,200,300
4. Step 4: Simplify right side
   561,558x = 1,440,720,090,000
5. Step 5: Solve for x
   x = 1,440,720,090,000/561,558
6. Step 6: Final answer
   x = 2,565,576.65