Finding the Third Proportional to 1,977,336 and 4,317,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977,336 : 4,317,120 = 4,317,120 : x
2. Step 2: Convert to fraction form
   1,977,336/4,317,120 = 4,317,120/x
3. Step 3: Cross multiply
   1,977,336x = 4,317,120 × 4,317,120
4. Step 4: Simplify right side
   1,977,336x = 18,637,525,094,400
5. Step 5: Solve for x
   x = 18,637,525,094,400/1,977,336
6. Step 6: Final answer
   x = 9,425,573.14