Finding the Third Proportional to 240,783 and 357,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   240,783 : 357,706.50 = 357,706.50 : x
2. Step 2: Convert to fraction form
   240,783/357,706.50 = 357,706.50/x
3. Step 3: Cross multiply
   240,783x = 357,706.50 × 357,706.50
4. Step 4: Simplify right side
   240,783x = 127,953,940,142.25
5. Step 5: Solve for x
   x = 127,953,940,142.25/240,783
6. Step 6: Final answer
   x = 531,407.70