Finding the Third Proportional to 1,973,458 and 4,315,988

Step by Step Solution

1. Step 1: Write the proportion equation
   1,973,458 : 4,315,988 = 4,315,988 : x
2. Step 2: Convert to fraction form
   1,973,458/4,315,988 = 4,315,988/x
3. Step 3: Cross multiply
   1,973,458x = 4,315,988 × 4,315,988
4. Step 4: Simplify right side
   1,973,458x = 18,627,752,416,144
5. Step 5: Solve for x
   x = 18,627,752,416,144/1,973,458
6. Step 6: Final answer
   x = 9,439,143.08