Finding the Third Proportional to 144,307.50 and 210,875.25

Step by Step Solution

1. Step 1: Write the proportion equation
   144,307.50 : 210,875.25 = 210,875.25 : x
2. Step 2: Convert to fraction form
   144,307.50/210,875.25 = 210,875.25/x
3. Step 3: Cross multiply
   144,307.50x = 210,875.25 × 210,875.25
4. Step 4: Simplify right side
   144,307.50x = 44,468,371,062.56
5. Step 5: Solve for x
   x = 44,468,371,062.56/144,307.50
6. Step 6: Final answer
   x = 308,150.10