Finding the Third Proportional to 143,005.50 and 210,073.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,005.50 : 210,073.50 = 210,073.50 : x
2. Step 2: Convert to fraction form
   143,005.50/210,073.50 = 210,073.50/x
3. Step 3: Cross multiply
   143,005.50x = 210,073.50 × 210,073.50
4. Step 4: Simplify right side
   143,005.50x = 44,130,875,402.25
5. Step 5: Solve for x
   x = 44,130,875,402.25/143,005.50
6. Step 6: Final answer
   x = 308,595.65