Finding the Third Proportional to 70,194.75 and 109,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,194.75 : 109,099.50 = 109,099.50 : x
2. Step 2: Convert to fraction form
   70,194.75/109,099.50 = 109,099.50/x
3. Step 3: Cross multiply
   70,194.75x = 109,099.50 × 109,099.50
4. Step 4: Simplify right side
   70,194.75x = 11,902,700,900.25
5. Step 5: Solve for x
   x = 11,902,700,900.25/70,194.75
6. Step 6: Final answer
   x = 169,566.83