Finding the Third Proportional to 686,253 and 1,041,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   686,253 : 1,041,043.50 = 1,041,043.50 : x
2. Step 2: Convert to fraction form
   686,253/1,041,043.50 = 1,041,043.50/x
3. Step 3: Cross multiply
   686,253x = 1,041,043.50 × 1,041,043.50
4. Step 4: Simplify right side
   686,253x = 1,083,771,568,892.25
5. Step 5: Solve for x
   x = 1,083,771,568,892.25/686,253
6. Step 6: Final answer
   x = 1,579,259.50