Finding the Third Proportional to 253,300.50 and 388,374.75

Step by Step Solution

1. Step 1: Write the proportion equation
   253,300.50 : 388,374.75 = 388,374.75 : x
2. Step 2: Convert to fraction form
   253,300.50/388,374.75 = 388,374.75/x
3. Step 3: Cross multiply
   253,300.50x = 388,374.75 × 388,374.75
4. Step 4: Simplify right side
   253,300.50x = 150,834,946,437.56
5. Step 5: Solve for x
   x = 150,834,946,437.56/253,300.50
6. Step 6: Final answer
   x = 595,478.28