Finding the Third Proportional to 221,468 and 343,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,468 : 343,577.50 = 343,577.50 : x
2. Step 2: Convert to fraction form
   221,468/343,577.50 = 343,577.50/x
3. Step 3: Cross multiply
   221,468x = 343,577.50 × 343,577.50
4. Step 4: Simplify right side
   221,468x = 118,045,498,506.25
5. Step 5: Solve for x
   x = 118,045,498,506.25/221,468
6. Step 6: Final answer
   x = 533,013.79