Finding the Third Proportional to 103,816 and 148,455.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,816 : 148,455.50 = 148,455.50 : x
2. Step 2: Convert to fraction form
   103,816/148,455.50 = 148,455.50/x
3. Step 3: Cross multiply
   103,816x = 148,455.50 × 148,455.50
4. Step 4: Simplify right side
   103,816x = 22,039,035,480.25
5. Step 5: Solve for x
   x = 22,039,035,480.25/103,816
6. Step 6: Final answer
   x = 212,289.39