Finding the Third Proportional to 1,918,046 and 4,428,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,046 : 4,428,788 = 4,428,788 : x
2. Step 2: Convert to fraction form
   1,918,046/4,428,788 = 4,428,788/x
3. Step 3: Cross multiply
   1,918,046x = 4,428,788 × 4,428,788
4. Step 4: Simplify right side
   1,918,046x = 19,614,163,148,944
5. Step 5: Solve for x
   x = 19,614,163,148,944/1,918,046
6. Step 6: Final answer
   x = 10,226,117.18