Finding the Third Proportional to 222,599 and 344,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,599 : 344,892.50 = 344,892.50 : x
2. Step 2: Convert to fraction form
   222,599/344,892.50 = 344,892.50/x
3. Step 3: Cross multiply
   222,599x = 344,892.50 × 344,892.50
4. Step 4: Simplify right side
   222,599x = 118,950,836,556.25
5. Step 5: Solve for x
   x = 118,950,836,556.25/222,599
6. Step 6: Final answer
   x = 534,372.74