Finding the Third Proportional to 237,405 and 340,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   237,405 : 340,075.50 = 340,075.50 : x
2. Step 2: Convert to fraction form
   237,405/340,075.50 = 340,075.50/x
3. Step 3: Cross multiply
   237,405x = 340,075.50 × 340,075.50
4. Step 4: Simplify right side
   237,405x = 115,651,345,700.25
5. Step 5: Solve for x
   x = 115,651,345,700.25/237,405
6. Step 6: Final answer
   x = 487,147.89