Finding the Third Proportional to 3,619,899 and 7,490,349

Step by Step Solution

1. Step 1: Write the proportion equation
   3,619,899 : 7,490,349 = 7,490,349 : x
2. Step 2: Convert to fraction form
   3,619,899/7,490,349 = 7,490,349/x
3. Step 3: Cross multiply
   3,619,899x = 7,490,349 × 7,490,349
4. Step 4: Simplify right side
   3,619,899x = 56,105,328,141,801
5. Step 5: Solve for x
   x = 56,105,328,141,801/3,619,899
6. Step 6: Final answer
   x = 15,499,141.87