Finding the Third Proportional to 13,969,158 and 20,867,705

Step by Step Solution

1. Step 1: Write the proportion equation
   13,969,158 : 20,867,705 = 20,867,705 : x
2. Step 2: Convert to fraction form
   13,969,158/20,867,705 = 20,867,705/x
3. Step 3: Cross multiply
   13,969,158x = 20,867,705 × 20,867,705
4. Step 4: Simplify right side
   13,969,158x = 435,461,111,967,025
5. Step 5: Solve for x
   x = 435,461,111,967,025/13,969,158
6. Step 6: Final answer
   x = 31,173,039.35