Finding the Third Proportional to 13,997,163 and 20,015,967

Step by Step Solution

1. Step 1: Write the proportion equation
   13,997,163 : 20,015,967 = 20,015,967 : x
2. Step 2: Convert to fraction form
   13,997,163/20,015,967 = 20,015,967/x
3. Step 3: Cross multiply
   13,997,163x = 20,015,967 × 20,015,967
4. Step 4: Simplify right side
   13,997,163x = 400,638,934,945,089
5. Step 5: Solve for x
   x = 400,638,934,945,089/13,997,163
6. Step 6: Final answer
   x = 28,622,867.00