Finding the Third Proportional to 225,372 and 348,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,372 : 348,790.50 = 348,790.50 : x
2. Step 2: Convert to fraction form
   225,372/348,790.50 = 348,790.50/x
3. Step 3: Cross multiply
   225,372x = 348,790.50 × 348,790.50
4. Step 4: Simplify right side
   225,372x = 121,654,812,890.25
5. Step 5: Solve for x
   x = 121,654,812,890.25/225,372
6. Step 6: Final answer
   x = 539,795.60