Finding the Third Proportional to 148,339.50 and 230,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,339.50 : 230,116.50 = 230,116.50 : x
2. Step 2: Convert to fraction form
   148,339.50/230,116.50 = 230,116.50/x
3. Step 3: Cross multiply
   148,339.50x = 230,116.50 × 230,116.50
4. Step 4: Simplify right side
   148,339.50x = 52,953,603,572.25
5. Step 5: Solve for x
   x = 52,953,603,572.25/148,339.50
6. Step 6: Final answer
   x = 356,975.75