Finding the Third Proportional to 147,621 and 229,207.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,621 : 229,207.50 = 229,207.50 : x
2. Step 2: Convert to fraction form
   147,621/229,207.50 = 229,207.50/x
3. Step 3: Cross multiply
   147,621x = 229,207.50 × 229,207.50
4. Step 4: Simplify right side
   147,621x = 52,536,078,056.25
5. Step 5: Solve for x
   x = 52,536,078,056.25/147,621
6. Step 6: Final answer
   x = 355,884.85