Finding the Third Proportional to 686,736.56 and 1,010,250.56

Step by Step Solution

1. Step 1: Write the proportion equation
   686,736.56 : 1,010,250.56 = 1,010,250.56 : x
2. Step 2: Convert to fraction form
   686,736.56/1,010,250.56 = 1,010,250.56/x
3. Step 3: Cross multiply
   686,736.56x = 1,010,250.56 × 1,010,250.56
4. Step 4: Simplify right side
   686,736.56x = 1,020,606,199,031.57
5. Step 5: Solve for x
   x = 1,020,606,199,031.57/686,736.56
6. Step 6: Final answer
   x = 1,486,168.43