Finding the Third Proportional to 778,603.50 and 1,047,613.50

Step by Step Solution

1. Step 1: Write the proportion equation
   778,603.50 : 1,047,613.50 = 1,047,613.50 : x
2. Step 2: Convert to fraction form
   778,603.50/1,047,613.50 = 1,047,613.50/x
3. Step 3: Cross multiply
   778,603.50x = 1,047,613.50 × 1,047,613.50
4. Step 4: Simplify right side
   778,603.50x = 1,097,494,045,382.25
5. Step 5: Solve for x
   x = 1,097,494,045,382.25/778,603.50
6. Step 6: Final answer
   x = 1,409,567.32