Finding the Third Proportional to 68,833.50 and 145,938

Step by Step Solution

1. Step 1: Write the proportion equation
   68,833.50 : 145,938 = 145,938 : x
2. Step 2: Convert to fraction form
   68,833.50/145,938 = 145,938/x
3. Step 3: Cross multiply
   68,833.50x = 145,938 × 145,938
4. Step 4: Simplify right side
   68,833.50x = 21,297,899,844
5. Step 5: Solve for x
   x = 21,297,899,844/68,833.50
6. Step 6: Final answer
   x = 309,411.84