Finding the Third Proportional to 8,705,402 and 13,725,843

Step by Step Solution

1. Step 1: Write the proportion equation
   8,705,402 : 13,725,843 = 13,725,843 : x
2. Step 2: Convert to fraction form
   8,705,402/13,725,843 = 13,725,843/x
3. Step 3: Cross multiply
   8,705,402x = 13,725,843 × 13,725,843
4. Step 4: Simplify right side
   8,705,402x = 188,398,766,060,649
5. Step 5: Solve for x
   x = 188,398,766,060,649/8,705,402
6. Step 6: Final answer
   x = 21,641,592.89