Finding the Third Proportional to 912 and 1,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   912 : 1,981.50 = 1,981.50 : x
2. Step 2: Convert to fraction form
   912/1,981.50 = 1,981.50/x
3. Step 3: Cross multiply
   912x = 1,981.50 × 1,981.50
4. Step 4: Simplify right side
   912x = 3,926,342.25
5. Step 5: Solve for x
   x = 3,926,342.25/912
6. Step 6: Final answer
   x = 4,305.20