Finding the Third Proportional to 148,278 and 229,768.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,278 : 229,768.50 = 229,768.50 : x
2. Step 2: Convert to fraction form
   148,278/229,768.50 = 229,768.50/x
3. Step 3: Cross multiply
   148,278x = 229,768.50 × 229,768.50
4. Step 4: Simplify right side
   148,278x = 52,793,563,592.25
5. Step 5: Solve for x
   x = 52,793,563,592.25/148,278
6. Step 6: Final answer
   x = 356,044.48