Finding the Third Proportional to 55,809 and 78,063

Step by Step Solution

1. Step 1: Write the proportion equation
   55,809 : 78,063 = 78,063 : x
2. Step 2: Convert to fraction form
   55,809/78,063 = 78,063/x
3. Step 3: Cross multiply
   55,809x = 78,063 × 78,063
4. Step 4: Simplify right side
   55,809x = 6,093,831,969
5. Step 5: Solve for x
   x = 6,093,831,969/55,809
6. Step 6: Final answer
   x = 109,190.85