Finding the Third Proportional to 1,973,918 and 4,247,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,918 : 4,247,200 = 4,247,200 : x
2. Step 2: Convert to fraction form
   1,973,918/4,247,200 = 4,247,200/x
3. Step 3: Cross multiply
   1,973,918x = 4,247,200 × 4,247,200
4. Step 4: Simplify right side
   1,973,918x = 18,038,707,840,000
5. Step 5: Solve for x
   x = 18,038,707,840,000/1,973,918
6. Step 6: Final answer
   x = 9,138,529.48