Finding the Third Proportional to 65,810 and 89,967

Step by Step Solution

1. Step 1: Write the proportion equation
   65,810 : 89,967 = 89,967 : x
2. Step 2: Convert to fraction form
   65,810/89,967 = 89,967/x
3. Step 3: Cross multiply
   65,810x = 89,967 × 89,967
4. Step 4: Simplify right side
   65,810x = 8,094,061,089
5. Step 5: Solve for x
   x = 8,094,061,089/65,810
6. Step 6: Final answer
   x = 122,991.36