Finding the Third Proportional to 222,789 and 344,737.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,789 : 344,737.50 = 344,737.50 : x
2. Step 2: Convert to fraction form
   222,789/344,737.50 = 344,737.50/x
3. Step 3: Cross multiply
   222,789x = 344,737.50 × 344,737.50
4. Step 4: Simplify right side
   222,789x = 118,843,943,906.25
5. Step 5: Solve for x
   x = 118,843,943,906.25/222,789
6. Step 6: Final answer
   x = 533,437.22