Finding the Third Proportional to 222,759 and 345,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,759 : 345,316.50 = 345,316.50 : x
2. Step 2: Convert to fraction form
   222,759/345,316.50 = 345,316.50/x
3. Step 3: Cross multiply
   222,759x = 345,316.50 × 345,316.50
4. Step 4: Simplify right side
   222,759x = 119,243,485,172.25
5. Step 5: Solve for x
   x = 119,243,485,172.25/222,759
6. Step 6: Final answer
   x = 535,302.66