Finding the Third Proportional to 99,211.50 and 234,154.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,211.50 : 234,154.50 = 234,154.50 : x
2. Step 2: Convert to fraction form
   99,211.50/234,154.50 = 234,154.50/x
3. Step 3: Cross multiply
   99,211.50x = 234,154.50 × 234,154.50
4. Step 4: Simplify right side
   99,211.50x = 54,828,329,870.25
5. Step 5: Solve for x
   x = 54,828,329,870.25/99,211.50
6. Step 6: Final answer
   x = 552,640.87