Finding the Third Proportional to 92,724 and 139,516.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,724 : 139,516.50 = 139,516.50 : x
2. Step 2: Convert to fraction form
   92,724/139,516.50 = 139,516.50/x
3. Step 3: Cross multiply
   92,724x = 139,516.50 × 139,516.50
4. Step 4: Simplify right side
   92,724x = 19,464,853,772.25
5. Step 5: Solve for x
   x = 19,464,853,772.25/92,724
6. Step 6: Final answer
   x = 209,922.50