Finding the Third Proportional to 1,977,384 and 4,317,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977,384 : 4,317,216 = 4,317,216 : x
2. Step 2: Convert to fraction form
   1,977,384/4,317,216 = 4,317,216/x
3. Step 3: Cross multiply
   1,977,384x = 4,317,216 × 4,317,216
4. Step 4: Simplify right side
   1,977,384x = 18,638,353,990,656
5. Step 5: Solve for x
   x = 18,638,353,990,656/1,977,384
6. Step 6: Final answer
   x = 9,425,763.53