Finding the Third Proportional to 69,088.50 and 143,370

Step by Step Solution

1. Step 1: Write the proportion equation
   69,088.50 : 143,370 = 143,370 : x
2. Step 2: Convert to fraction form
   69,088.50/143,370 = 143,370/x
3. Step 3: Cross multiply
   69,088.50x = 143,370 × 143,370
4. Step 4: Simplify right side
   69,088.50x = 20,554,956,900
5. Step 5: Solve for x
   x = 20,554,956,900/69,088.50
6. Step 6: Final answer
   x = 297,516.33