Finding the Third Proportional to 3,663,186 and 5,385,030

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,186 : 5,385,030 = 5,385,030 : x
2. Step 2: Convert to fraction form
   3,663,186/5,385,030 = 5,385,030/x
3. Step 3: Cross multiply
   3,663,186x = 5,385,030 × 5,385,030
4. Step 4: Simplify right side
   3,663,186x = 28,998,548,100,900
5. Step 5: Solve for x
   x = 28,998,548,100,900/3,663,186
6. Step 6: Final answer
   x = 7,916,209.58