Finding the Third Proportional to 12,156,636 and 19,249,722

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156,636 : 19,249,722 = 19,249,722 : x
2. Step 2: Convert to fraction form
   12,156,636/19,249,722 = 19,249,722/x
3. Step 3: Cross multiply
   12,156,636x = 19,249,722 × 19,249,722
4. Step 4: Simplify right side
   12,156,636x = 370,551,797,077,284
5. Step 5: Solve for x
   x = 370,551,797,077,284/12,156,636
6. Step 6: Final answer
   x = 30,481,442.16