Finding the Third Proportional to 143,061 and 221,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,061 : 221,167.50 = 221,167.50 : x
2. Step 2: Convert to fraction form
   143,061/221,167.50 = 221,167.50/x
3. Step 3: Cross multiply
   143,061x = 221,167.50 × 221,167.50
4. Step 4: Simplify right side
   143,061x = 48,915,063,056.25
5. Step 5: Solve for x
   x = 48,915,063,056.25/143,061
6. Step 6: Final answer
   x = 341,917.53