Finding the Third Proportional to 1,139,899.50 and 1,778,861.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,899.50 : 1,778,861.25 = 1,778,861.25 : x
2. Step 2: Convert to fraction form
   1,139,899.50/1,778,861.25 = 1,778,861.25/x
3. Step 3: Cross multiply
   1,139,899.50x = 1,778,861.25 × 1,778,861.25
4. Step 4: Simplify right side
   1,139,899.50x = 3,164,347,346,751.56
5. Step 5: Solve for x
   x = 3,164,347,346,751.56/1,139,899.50
6. Step 6: Final answer
   x = 2,775,988.01