Finding the Third Proportional to 68,435.81 and 146,329.31

Step by Step Solution

1. Step 1: Write the proportion equation
   68,435.81 : 146,329.31 = 146,329.31 : x
2. Step 2: Convert to fraction form
   68,435.81/146,329.31 = 146,329.31/x
3. Step 3: Cross multiply
   68,435.81x = 146,329.31 × 146,329.31
4. Step 4: Simplify right side
   68,435.81x = 21,412,267,696.72
5. Step 5: Solve for x
   x = 21,412,267,696.72/68,435.81
6. Step 6: Final answer
   x = 312,881.03