Finding the Third Proportional to 102,915 and 153,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,915 : 153,940.50 = 153,940.50 : x
2. Step 2: Convert to fraction form
   102,915/153,940.50 = 153,940.50/x
3. Step 3: Cross multiply
   102,915x = 153,940.50 × 153,940.50
4. Step 4: Simplify right side
   102,915x = 23,697,677,540.25
5. Step 5: Solve for x
   x = 23,697,677,540.25/102,915
6. Step 6: Final answer
   x = 230,264.56