Finding the Third Proportional to 92,211 and 142,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,211 : 142,409.50 = 142,409.50 : x
2. Step 2: Convert to fraction form
   92,211/142,409.50 = 142,409.50/x
3. Step 3: Cross multiply
   92,211x = 142,409.50 × 142,409.50
4. Step 4: Simplify right side
   92,211x = 20,280,465,690.25
5. Step 5: Solve for x
   x = 20,280,465,690.25/92,211
6. Step 6: Final answer
   x = 219,935.43