Finding the Third Proportional to 73,570.50 and 109,806.75

Step by Step Solution

1. Step 1: Write the proportion equation
   73,570.50 : 109,806.75 = 109,806.75 : x
2. Step 2: Convert to fraction form
   73,570.50/109,806.75 = 109,806.75/x
3. Step 3: Cross multiply
   73,570.50x = 109,806.75 × 109,806.75
4. Step 4: Simplify right side
   73,570.50x = 12,057,522,345.56
5. Step 5: Solve for x
   x = 12,057,522,345.56/73,570.50
6. Step 6: Final answer
   x = 163,890.72