Finding the Third Proportional to 1,130.63 and 1,490.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,130.63 : 1,490.06 = 1,490.06 : x
2. Step 2: Convert to fraction form
   1,130.63/1,490.06 = 1,490.06/x
3. Step 3: Cross multiply
   1,130.63x = 1,490.06 × 1,490.06
4. Step 4: Simplify right side
   1,130.63x = 2,220,286.25
5. Step 5: Solve for x
   x = 2,220,286.25/1,130.63
6. Step 6: Final answer
   x = 1,963.77