Finding the Third Proportional to 2,428,290 and 3,563,703

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428,290 : 3,563,703 = 3,563,703 : x
2. Step 2: Convert to fraction form
   2,428,290/3,563,703 = 3,563,703/x
3. Step 3: Cross multiply
   2,428,290x = 3,563,703 × 3,563,703
4. Step 4: Simplify right side
   2,428,290x = 12,699,979,072,209
5. Step 5: Solve for x
   x = 12,699,979,072,209/2,428,290
6. Step 6: Final answer
   x = 5,230,009.21