Finding the Third Proportional to 985,200 and 2,124,300

Step by Step Solution

1. Step 1: Write the proportion equation
   985,200 : 2,124,300 = 2,124,300 : x
2. Step 2: Convert to fraction form
   985,200/2,124,300 = 2,124,300/x
3. Step 3: Cross multiply
   985,200x = 2,124,300 × 2,124,300
4. Step 4: Simplify right side
   985,200x = 4,512,650,490,000
5. Step 5: Solve for x
   x = 4,512,650,490,000/985,200
6. Step 6: Final answer
   x = 4,580,441.02