Finding the Third Proportional to 90,947.25 and 214,389

Step by Step Solution

1. Step 1: Write the proportion equation
   90,947.25 : 214,389 = 214,389 : x
2. Step 2: Convert to fraction form
   90,947.25/214,389 = 214,389/x
3. Step 3: Cross multiply
   90,947.25x = 214,389 × 214,389
4. Step 4: Simplify right side
   90,947.25x = 45,962,643,321
5. Step 5: Solve for x
   x = 45,962,643,321/90,947.25
6. Step 6: Final answer
   x = 505,376.94