Finding the Third Proportional to 70,453 and 145,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,453 : 145,563.50 = 145,563.50 : x
2. Step 2: Convert to fraction form
   70,453/145,563.50 = 145,563.50/x
3. Step 3: Cross multiply
   70,453x = 145,563.50 × 145,563.50
4. Step 4: Simplify right side
   70,453x = 21,188,732,532.25
5. Step 5: Solve for x
   x = 21,188,732,532.25/70,453
6. Step 6: Final answer
   x = 300,749.90