Finding the Third Proportional to 3,663,246 and 5,385,105

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,246 : 5,385,105 = 5,385,105 : x
2. Step 2: Convert to fraction form
   3,663,246/5,385,105 = 5,385,105/x
3. Step 3: Cross multiply
   3,663,246x = 5,385,105 × 5,385,105
4. Step 4: Simplify right side
   3,663,246x = 28,999,355,861,025
5. Step 5: Solve for x
   x = 28,999,355,861,025/3,663,246
6. Step 6: Final answer
   x = 7,916,300.42