Finding the Third Proportional to 305,127 and 443,839.50

Step by Step Solution

1. Step 1: Write the proportion equation
   305,127 : 443,839.50 = 443,839.50 : x
2. Step 2: Convert to fraction form
   305,127/443,839.50 = 443,839.50/x
3. Step 3: Cross multiply
   305,127x = 443,839.50 × 443,839.50
4. Step 4: Simplify right side
   305,127x = 196,993,501,760.25
5. Step 5: Solve for x
   x = 196,993,501,760.25/305,127
6. Step 6: Final answer
   x = 645,611.51