Finding the Third Proportional to 10,434,810 and 13,721,724

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434,810 : 13,721,724 = 13,721,724 : x
2. Step 2: Convert to fraction form
   10,434,810/13,721,724 = 13,721,724/x
3. Step 3: Cross multiply
   10,434,810x = 13,721,724 × 13,721,724
4. Step 4: Simplify right side
   10,434,810x = 188,285,709,532,176
5. Step 5: Solve for x
   x = 188,285,709,532,176/10,434,810
6. Step 6: Final answer
   x = 18,043,999.80