Finding the Third Proportional to 73,809.50 and 152,871.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,809.50 : 152,871.50 = 152,871.50 : x
2. Step 2: Convert to fraction form
   73,809.50/152,871.50 = 152,871.50/x
3. Step 3: Cross multiply
   73,809.50x = 152,871.50 × 152,871.50
4. Step 4: Simplify right side
   73,809.50x = 23,369,695,512.25
5. Step 5: Solve for x
   x = 23,369,695,512.25/73,809.50
6. Step 6: Final answer
   x = 316,621.78