Finding the Third Proportional to 103,611 and 154,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,611 : 154,912.50 = 154,912.50 : x
2. Step 2: Convert to fraction form
   103,611/154,912.50 = 154,912.50/x
3. Step 3: Cross multiply
   103,611x = 154,912.50 × 154,912.50
4. Step 4: Simplify right side
   103,611x = 23,997,882,656.25
5. Step 5: Solve for x
   x = 23,997,882,656.25/103,611
6. Step 6: Final answer
   x = 231,615.20