Finding the Third Proportional to 55,817 and 78,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,817 : 78,074.50 = 78,074.50 : x
2. Step 2: Convert to fraction form
   55,817/78,074.50 = 78,074.50/x
3. Step 3: Cross multiply
   55,817x = 78,074.50 × 78,074.50
4. Step 4: Simplify right side
   55,817x = 6,095,627,550.25
5. Step 5: Solve for x
   x = 6,095,627,550.25/55,817
6. Step 6: Final answer
   x = 109,207.37