Finding the Third Proportional to 70,445.50 and 146,709.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,445.50 : 146,709.50 = 146,709.50 : x
2. Step 2: Convert to fraction form
   70,445.50/146,709.50 = 146,709.50/x
3. Step 3: Cross multiply
   70,445.50x = 146,709.50 × 146,709.50
4. Step 4: Simplify right side
   70,445.50x = 21,523,677,390.25
5. Step 5: Solve for x
   x = 21,523,677,390.25/70,445.50
6. Step 6: Final answer
   x = 305,536.58