Finding the Third Proportional to 250,434 and 556,852.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,434 : 556,852.50 = 556,852.50 : x
2. Step 2: Convert to fraction form
   250,434/556,852.50 = 556,852.50/x
3. Step 3: Cross multiply
   250,434x = 556,852.50 × 556,852.50
4. Step 4: Simplify right side
   250,434x = 310,084,706,756.25
5. Step 5: Solve for x
   x = 310,084,706,756.25/250,434
6. Step 6: Final answer
   x = 1,238,189.33