Finding the Third Proportional to 69,273 and 149,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,273 : 149,141.25 = 149,141.25 : x
2. Step 2: Convert to fraction form
   69,273/149,141.25 = 149,141.25/x
3. Step 3: Cross multiply
   69,273x = 149,141.25 × 149,141.25
4. Step 4: Simplify right side
   69,273x = 22,243,112,451.56
5. Step 5: Solve for x
   x = 22,243,112,451.56/69,273
6. Step 6: Final answer
   x = 321,093.54