Finding the Third Proportional to 138,963 and 303,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   138,963 : 303,349.50 = 303,349.50 : x
2. Step 2: Convert to fraction form
   138,963/303,349.50 = 303,349.50/x
3. Step 3: Cross multiply
   138,963x = 303,349.50 × 303,349.50
4. Step 4: Simplify right side
   138,963x = 92,020,919,150.25
5. Step 5: Solve for x
   x = 92,020,919,150.25/138,963
6. Step 6: Final answer
   x = 662,197.27