Finding the Third Proportional to 33,940.50 and 70,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   33,940.50 : 70,978.50 = 70,978.50 : x
2. Step 2: Convert to fraction form
   33,940.50/70,978.50 = 70,978.50/x
3. Step 3: Cross multiply
   33,940.50x = 70,978.50 × 70,978.50
4. Step 4: Simplify right side
   33,940.50x = 5,037,947,462.25
5. Step 5: Solve for x
   x = 5,037,947,462.25/33,940.50
6. Step 6: Final answer
   x = 148,434.69