Finding the Third Proportional to 141,213 and 216,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,213 : 216,328.50 = 216,328.50 : x
2. Step 2: Convert to fraction form
   141,213/216,328.50 = 216,328.50/x
3. Step 3: Cross multiply
   141,213x = 216,328.50 × 216,328.50
4. Step 4: Simplify right side
   141,213x = 46,798,019,912.25
5. Step 5: Solve for x
   x = 46,798,019,912.25/141,213
6. Step 6: Final answer
   x = 331,400.22