Finding the Third Proportional to 1,216.69 and 1,887.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216.69 : 1,887.89 = 1,887.89 : x
2. Step 2: Convert to fraction form
   1,216.69/1,887.89 = 1,887.89/x
3. Step 3: Cross multiply
   1,216.69x = 1,887.89 × 1,887.89
4. Step 4: Simplify right side
   1,216.69x = 3,564,131.01
5. Step 5: Solve for x
   x = 3,564,131.01/1,216.69
6. Step 6: Final answer
   x = 2,929.37