Finding the Third Proportional to 237,558 and 528,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   237,558 : 528,238.50 = 528,238.50 : x
2. Step 2: Convert to fraction form
   237,558/528,238.50 = 528,238.50/x
3. Step 3: Cross multiply
   237,558x = 528,238.50 × 528,238.50
4. Step 4: Simplify right side
   237,558x = 279,035,912,882.25
5. Step 5: Solve for x
   x = 279,035,912,882.25/237,558
6. Step 6: Final answer
   x = 1,174,601.20