Finding the Third Proportional to 236,146.50 and 507,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   236,146.50 : 507,280.50 = 507,280.50 : x
2. Step 2: Convert to fraction form
   236,146.50/507,280.50 = 507,280.50/x
3. Step 3: Cross multiply
   236,146.50x = 507,280.50 × 507,280.50
4. Step 4: Simplify right side
   236,146.50x = 257,333,505,680.25
5. Step 5: Solve for x
   x = 257,333,505,680.25/236,146.50
6. Step 6: Final answer
   x = 1,089,719.75