Finding the Third Proportional to 2,123,693 and 4,585,477

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,693 : 4,585,477 = 4,585,477 : x
2. Step 2: Convert to fraction form
   2,123,693/4,585,477 = 4,585,477/x
3. Step 3: Cross multiply
   2,123,693x = 4,585,477 × 4,585,477
4. Step 4: Simplify right side
   2,123,693x = 21,026,599,317,529
5. Step 5: Solve for x
   x = 21,026,599,317,529/2,123,693
6. Step 6: Final answer
   x = 9,900,959.94