Finding the Third Proportional to 257,011.50 and 556,926

Step by Step Solution

1. Step 1: Write the proportion equation
   257,011.50 : 556,926 = 556,926 : x
2. Step 2: Convert to fraction form
   257,011.50/556,926 = 556,926/x
3. Step 3: Cross multiply
   257,011.50x = 556,926 × 556,926
4. Step 4: Simplify right side
   257,011.50x = 310,166,569,476
5. Step 5: Solve for x
   x = 310,166,569,476/257,011.50
6. Step 6: Final answer
   x = 1,206,819.81