Finding the Third Proportional to 2,059,622.20 and 4,485,398.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059,622.20 : 4,485,398.18 = 4,485,398.18 : x
2. Step 2: Convert to fraction form
   2,059,622.20/4,485,398.18 = 4,485,398.18/x
3. Step 3: Cross multiply
   2,059,622.20x = 4,485,398.18 × 4,485,398.18
4. Step 4: Simplify right side
   2,059,622.20x = 20,118,796,804,061.30
5. Step 5: Solve for x
   x = 20,118,796,804,061.30/2,059,622.20
6. Step 6: Final answer
   x = 9,768,197.68