Finding the Third Proportional to 1,407.94 and 2,100.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.94 : 2,100.09 = 2,100.09 : x
2. Step 2: Convert to fraction form
   1,407.94/2,100.09 = 2,100.09/x
3. Step 3: Cross multiply
   1,407.94x = 2,100.09 × 2,100.09
4. Step 4: Simplify right side
   1,407.94x = 4,410,393.76
5. Step 5: Solve for x
   x = 4,410,393.76/1,407.94
6. Step 6: Final answer
   x = 3,132.52