Finding the Third Proportional to 70,503 and 146,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,503 : 146,815.50 = 146,815.50 : x
2. Step 2: Convert to fraction form
   70,503/146,815.50 = 146,815.50/x
3. Step 3: Cross multiply
   70,503x = 146,815.50 × 146,815.50
4. Step 4: Simplify right side
   70,503x = 21,554,791,040.25
5. Step 5: Solve for x
   x = 21,554,791,040.25/70,503
6. Step 6: Final answer
   x = 305,728.71