Finding the Third Proportional to 3,504,386 and 5,123,536

Step by Step Solution

1. Step 1: Write the proportion equation
   3,504,386 : 5,123,536 = 5,123,536 : x
2. Step 2: Convert to fraction form
   3,504,386/5,123,536 = 5,123,536/x
3. Step 3: Cross multiply
   3,504,386x = 5,123,536 × 5,123,536
4. Step 4: Simplify right side
   3,504,386x = 26,250,621,143,296
5. Step 5: Solve for x
   x = 26,250,621,143,296/3,504,386
6. Step 6: Final answer
   x = 7,490,790.44