Finding the Third Proportional to 3,387,420 and 7,457,184

Step by Step Solution

1. Step 1: Write the proportion equation
   3,387,420 : 7,457,184 = 7,457,184 : x
2. Step 2: Convert to fraction form
   3,387,420/7,457,184 = 7,457,184/x
3. Step 3: Cross multiply
   3,387,420x = 7,457,184 × 7,457,184
4. Step 4: Simplify right side
   3,387,420x = 55,609,593,209,856
5. Step 5: Solve for x
   x = 55,609,593,209,856/3,387,420
6. Step 6: Final answer
   x = 16,416,503.77