Finding the Third Proportional to 301,478 and 655,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,478 : 655,443.50 = 655,443.50 : x
2. Step 2: Convert to fraction form
   301,478/655,443.50 = 655,443.50/x
3. Step 3: Cross multiply
   301,478x = 655,443.50 × 655,443.50
4. Step 4: Simplify right side
   301,478x = 429,606,181,692.25
5. Step 5: Solve for x
   x = 429,606,181,692.25/301,478
6. Step 6: Final answer
   x = 1,425,000.11