Finding the Third Proportional to 240,231 and 556,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   240,231 : 556,072.50 = 556,072.50 : x
2. Step 2: Convert to fraction form
   240,231/556,072.50 = 556,072.50/x
3. Step 3: Cross multiply
   240,231x = 556,072.50 × 556,072.50
4. Step 4: Simplify right side
   240,231x = 309,216,625,256.25
5. Step 5: Solve for x
   x = 309,216,625,256.25/240,231
6. Step 6: Final answer
   x = 1,287,163.71