Finding the Third Proportional to 786,250.50 and 1,178,142.75

Step by Step Solution

1. Step 1: Write the proportion equation
   786,250.50 : 1,178,142.75 = 1,178,142.75 : x
2. Step 2: Convert to fraction form
   786,250.50/1,178,142.75 = 1,178,142.75/x
3. Step 3: Cross multiply
   786,250.50x = 1,178,142.75 × 1,178,142.75
4. Step 4: Simplify right side
   786,250.50x = 1,388,020,339,377.56
5. Step 5: Solve for x
   x = 1,388,020,339,377.56/786,250.50
6. Step 6: Final answer
   x = 1,765,366.56