Finding the Third Proportional to 221,940 and 343,267.88

Step by Step Solution

1. Step 1: Write the proportion equation
   221,940 : 343,267.88 = 343,267.88 : x
2. Step 2: Convert to fraction form
   221,940/343,267.88 = 343,267.88/x
3. Step 3: Cross multiply
   221,940x = 343,267.88 × 343,267.88
4. Step 4: Simplify right side
   221,940x = 117,832,834,007.02
5. Step 5: Solve for x
   x = 117,832,834,007.02/221,940
6. Step 6: Final answer
   x = 530,922.02