Finding the Third Proportional to 251,517 and 380,527.50

Step by Step Solution

1. Step 1: Write the proportion equation
   251,517 : 380,527.50 = 380,527.50 : x
2. Step 2: Convert to fraction form
   251,517/380,527.50 = 380,527.50/x
3. Step 3: Cross multiply
   251,517x = 380,527.50 × 380,527.50
4. Step 4: Simplify right side
   251,517x = 144,801,178,256.25
5. Step 5: Solve for x
   x = 144,801,178,256.25/251,517
6. Step 6: Final answer
   x = 575,711.30