Finding the Third Proportional to 70,825.50 and 144,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,825.50 : 144,931.50 = 144,931.50 : x
2. Step 2: Convert to fraction form
   70,825.50/144,931.50 = 144,931.50/x
3. Step 3: Cross multiply
   70,825.50x = 144,931.50 × 144,931.50
4. Step 4: Simplify right side
   70,825.50x = 21,005,139,692.25
5. Step 5: Solve for x
   x = 21,005,139,692.25/70,825.50
6. Step 6: Final answer
   x = 296,575.95