Finding the Third Proportional to 3,530,385 and 7,620,642

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530,385 : 7,620,642 = 7,620,642 : x
2. Step 2: Convert to fraction form
   3,530,385/7,620,642 = 7,620,642/x
3. Step 3: Cross multiply
   3,530,385x = 7,620,642 × 7,620,642
4. Step 4: Simplify right side
   3,530,385x = 58,074,184,492,164
5. Step 5: Solve for x
   x = 58,074,184,492,164/3,530,385
6. Step 6: Final answer
   x = 16,449,816.24