Finding the Third Proportional to 138,985.50 and 303,063

Step by Step Solution

1. Step 1: Write the proportion equation
   138,985.50 : 303,063 = 303,063 : x
2. Step 2: Convert to fraction form
   138,985.50/303,063 = 303,063/x
3. Step 3: Cross multiply
   138,985.50x = 303,063 × 303,063
4. Step 4: Simplify right side
   138,985.50x = 91,847,181,969
5. Step 5: Solve for x
   x = 91,847,181,969/138,985.50
6. Step 6: Final answer
   x = 660,840.03