Finding the Third Proportional to 147,789 and 306,087.75

Step by Step Solution

1. Step 1: Write the proportion equation
   147,789 : 306,087.75 = 306,087.75 : x
2. Step 2: Convert to fraction form
   147,789/306,087.75 = 306,087.75/x
3. Step 3: Cross multiply
   147,789x = 306,087.75 × 306,087.75
4. Step 4: Simplify right side
   147,789x = 93,689,710,700.06
5. Step 5: Solve for x
   x = 93,689,710,700.06/147,789
6. Step 6: Final answer
   x = 633,942.38