Finding the Third Proportional to 68,958 and 98,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,958 : 98,428.50 = 98,428.50 : x
2. Step 2: Convert to fraction form
   68,958/98,428.50 = 98,428.50/x
3. Step 3: Cross multiply
   68,958x = 98,428.50 × 98,428.50
4. Step 4: Simplify right side
   68,958x = 9,688,169,612.25
5. Step 5: Solve for x
   x = 9,688,169,612.25/68,958
6. Step 6: Final answer
   x = 140,493.77