Finding the Third Proportional to 63,801.50 and 139,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,801.50 : 139,814.50 = 139,814.50 : x
2. Step 2: Convert to fraction form
   63,801.50/139,814.50 = 139,814.50/x
3. Step 3: Cross multiply
   63,801.50x = 139,814.50 × 139,814.50
4. Step 4: Simplify right side
   63,801.50x = 19,548,094,410.25
5. Step 5: Solve for x
   x = 19,548,094,410.25/63,801.50
6. Step 6: Final answer
   x = 306,389.26