Finding the Third Proportional to 155,923.50 and 243,012

Step by Step Solution

1. Step 1: Write the proportion equation
   155,923.50 : 243,012 = 243,012 : x
2. Step 2: Convert to fraction form
   155,923.50/243,012 = 243,012/x
3. Step 3: Cross multiply
   155,923.50x = 243,012 × 243,012
4. Step 4: Simplify right side
   155,923.50x = 59,054,832,144
5. Step 5: Solve for x
   x = 59,054,832,144/155,923.50
6. Step 6: Final answer
   x = 378,742.35