Finding the Third Proportional to 3,680,487 and 8,043,318

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680,487 : 8,043,318 = 8,043,318 : x
2. Step 2: Convert to fraction form
   3,680,487/8,043,318 = 8,043,318/x
3. Step 3: Cross multiply
   3,680,487x = 8,043,318 × 8,043,318
4. Step 4: Simplify right side
   3,680,487x = 64,694,964,449,124
5. Step 5: Solve for x
   x = 64,694,964,449,124/3,680,487
6. Step 6: Final answer
   x = 17,577,827.19