Finding the Third Proportional to 919.31 and 1,916.25

Step by Step Solution

1. Step 1: Write the proportion equation
   919.31 : 1,916.25 = 1,916.25 : x
2. Step 2: Convert to fraction form
   919.31/1,916.25 = 1,916.25/x
3. Step 3: Cross multiply
   919.31x = 1,916.25 × 1,916.25
4. Step 4: Simplify right side
   919.31x = 3,672,014.06
5. Step 5: Solve for x
   x = 3,672,014.06/919.31
6. Step 6: Final answer
   x = 3,994.30