Finding the Third Proportional to 150,010.50 and 219,090

Step by Step Solution

1. Step 1: Write the proportion equation
   150,010.50 : 219,090 = 219,090 : x
2. Step 2: Convert to fraction form
   150,010.50/219,090 = 219,090/x
3. Step 3: Cross multiply
   150,010.50x = 219,090 × 219,090
4. Step 4: Simplify right side
   150,010.50x = 48,000,428,100
5. Step 5: Solve for x
   x = 48,000,428,100/150,010.50
6. Step 6: Final answer
   x = 319,980.46