Finding the Third Proportional to 145,347 and 308,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   145,347 : 308,284.50 = 308,284.50 : x
2. Step 2: Convert to fraction form
   145,347/308,284.50 = 308,284.50/x
3. Step 3: Cross multiply
   145,347x = 308,284.50 × 308,284.50
4. Step 4: Simplify right side
   145,347x = 95,039,332,940.25
5. Step 5: Solve for x
   x = 95,039,332,940.25/145,347
6. Step 6: Final answer
   x = 653,878.88