Finding the Third Proportional to 223,116 and 339,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   223,116 : 339,901.50 = 339,901.50 : x
2. Step 2: Convert to fraction form
   223,116/339,901.50 = 339,901.50/x
3. Step 3: Cross multiply
   223,116x = 339,901.50 × 339,901.50
4. Step 4: Simplify right side
   223,116x = 115,533,029,702.25
5. Step 5: Solve for x
   x = 115,533,029,702.25/223,116
6. Step 6: Final answer
   x = 517,815.98