Finding the Third Proportional to 153,243 and 230,073.75

Step by Step Solution

1. Step 1: Write the proportion equation
   153,243 : 230,073.75 = 230,073.75 : x
2. Step 2: Convert to fraction form
   153,243/230,073.75 = 230,073.75/x
3. Step 3: Cross multiply
   153,243x = 230,073.75 × 230,073.75
4. Step 4: Simplify right side
   153,243x = 52,933,930,439.06
5. Step 5: Solve for x
   x = 52,933,930,439.06/153,243
6. Step 6: Final answer
   x = 345,424.79