Finding the Third Proportional to 92,397 and 139,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,397 : 139,428.50 = 139,428.50 : x
2. Step 2: Convert to fraction form
   92,397/139,428.50 = 139,428.50/x
3. Step 3: Cross multiply
   92,397x = 139,428.50 × 139,428.50
4. Step 4: Simplify right side
   92,397x = 19,440,306,612.25
5. Step 5: Solve for x
   x = 19,440,306,612.25/92,397
6. Step 6: Final answer
   x = 210,399.76