Finding the Third Proportional to 2,146,945 and 4,387,106

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146,945 : 4,387,106 = 4,387,106 : x
2. Step 2: Convert to fraction form
   2,146,945/4,387,106 = 4,387,106/x
3. Step 3: Cross multiply
   2,146,945x = 4,387,106 × 4,387,106
4. Step 4: Simplify right side
   2,146,945x = 19,246,699,055,236
5. Step 5: Solve for x
   x = 19,246,699,055,236/2,146,945
6. Step 6: Final answer
   x = 8,964,691.25