Finding the Third Proportional to 10,434,798 and 13,721,706

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434,798 : 13,721,706 = 13,721,706 : x
2. Step 2: Convert to fraction form
   10,434,798/13,721,706 = 13,721,706/x
3. Step 3: Cross multiply
   10,434,798x = 13,721,706 × 13,721,706
4. Step 4: Simplify right side
   10,434,798x = 188,285,215,550,436
5. Step 5: Solve for x
   x = 188,285,215,550,436/10,434,798
6. Step 6: Final answer
   x = 18,043,973.21