Finding the Third Proportional to 3,686,688 and 8,019,630

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,688 : 8,019,630 = 8,019,630 : x
2. Step 2: Convert to fraction form
   3,686,688/8,019,630 = 8,019,630/x
3. Step 3: Cross multiply
   3,686,688x = 8,019,630 × 8,019,630
4. Step 4: Simplify right side
   3,686,688x = 64,314,465,336,900
5. Step 5: Solve for x
   x = 64,314,465,336,900/3,686,688
6. Step 6: Final answer
   x = 17,445,052.40