Finding the Third Proportional to 69,940.50 and 149,695.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,940.50 : 149,695.50 = 149,695.50 : x
2. Step 2: Convert to fraction form
   69,940.50/149,695.50 = 149,695.50/x
3. Step 3: Cross multiply
   69,940.50x = 149,695.50 × 149,695.50
4. Step 4: Simplify right side
   69,940.50x = 22,408,742,720.25
5. Step 5: Solve for x
   x = 22,408,742,720.25/69,940.50
6. Step 6: Final answer
   x = 320,397.23