Finding the Third Proportional to 143,492.50 and 223,440

Step by Step Solution

1. Step 1: Write the proportion equation
   143,492.50 : 223,440 = 223,440 : x
2. Step 2: Convert to fraction form
   143,492.50/223,440 = 223,440/x
3. Step 3: Cross multiply
   143,492.50x = 223,440 × 223,440
4. Step 4: Simplify right side
   143,492.50x = 49,925,433,600
5. Step 5: Solve for x
   x = 49,925,433,600/143,492.50
6. Step 6: Final answer
   x = 347,930.61