Finding the Third Proportional to 3,520,965.59 and 7,420,213.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,520,965.59 : 7,420,213.83 = 7,420,213.83 : x
2. Step 2: Convert to fraction form
   3,520,965.59/7,420,213.83 = 7,420,213.83/x
3. Step 3: Cross multiply
   3,520,965.59x = 7,420,213.83 × 7,420,213.83
4. Step 4: Simplify right side
   3,520,965.59x = 55,059,573,255,097.47
5. Step 5: Solve for x
   x = 55,059,573,255,097.47/3,520,965.59
6. Step 6: Final answer
   x = 15,637,634.60