Finding the Third Proportional to 147,505.50 and 319,104

Step by Step Solution

1. Step 1: Write the proportion equation
   147,505.50 : 319,104 = 319,104 : x
2. Step 2: Convert to fraction form
   147,505.50/319,104 = 319,104/x
3. Step 3: Cross multiply
   147,505.50x = 319,104 × 319,104
4. Step 4: Simplify right side
   147,505.50x = 101,827,362,816
5. Step 5: Solve for x
   x = 101,827,362,816/147,505.50
6. Step 6: Final answer
   x = 690,329.26