Finding the Third Proportional to 74,277.50 and 109,778

Step by Step Solution

1. Step 1: Write the proportion equation
   74,277.50 : 109,778 = 109,778 : x
2. Step 2: Convert to fraction form
   74,277.50/109,778 = 109,778/x
3. Step 3: Cross multiply
   74,277.50x = 109,778 × 109,778
4. Step 4: Simplify right side
   74,277.50x = 12,051,209,284
5. Step 5: Solve for x
   x = 12,051,209,284/74,277.50
6. Step 6: Final answer
   x = 162,245.76