Finding the Third Proportional to 4,183,174 and 8,868,632

Step by Step Solution

1. Step 1: Write the proportion equation
   4,183,174 : 8,868,632 = 8,868,632 : x
2. Step 2: Convert to fraction form
   4,183,174/8,868,632 = 8,868,632/x
3. Step 3: Cross multiply
   4,183,174x = 8,868,632 × 8,868,632
4. Step 4: Simplify right side
   4,183,174x = 78,652,633,551,424
5. Step 5: Solve for x
   x = 78,652,633,551,424/4,183,174
6. Step 6: Final answer
   x = 18,802,142.48