Finding the Third Proportional to 70,054.50 and 107,680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,054.50 : 107,680.50 = 107,680.50 : x
2. Step 2: Convert to fraction form
   70,054.50/107,680.50 = 107,680.50/x
3. Step 3: Cross multiply
   70,054.50x = 107,680.50 × 107,680.50
4. Step 4: Simplify right side
   70,054.50x = 11,595,090,080.25
5. Step 5: Solve for x
   x = 11,595,090,080.25/70,054.50
6. Step 6: Final answer
   x = 165,515.28