Finding the Third Proportional to 66,363 and 144,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,363 : 144,388.50 = 144,388.50 : x
2. Step 2: Convert to fraction form
   66,363/144,388.50 = 144,388.50/x
3. Step 3: Cross multiply
   66,363x = 144,388.50 × 144,388.50
4. Step 4: Simplify right side
   66,363x = 20,848,038,932.25
5. Step 5: Solve for x
   x = 20,848,038,932.25/66,363
6. Step 6: Final answer
   x = 314,151.54