Finding the Third Proportional to 55,906 and 85,806

Step by Step Solution

1. Step 1: Write the proportion equation
   55,906 : 85,806 = 85,806 : x
2. Step 2: Convert to fraction form
   55,906/85,806 = 85,806/x
3. Step 3: Cross multiply
   55,906x = 85,806 × 85,806
4. Step 4: Simplify right side
   55,906x = 7,362,669,636
5. Step 5: Solve for x
   x = 7,362,669,636/55,906
6. Step 6: Final answer
   x = 131,697.31