Finding the Third Proportional to 90,675 and 213,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,675 : 213,349.50 = 213,349.50 : x
2. Step 2: Convert to fraction form
   90,675/213,349.50 = 213,349.50/x
3. Step 3: Cross multiply
   90,675x = 213,349.50 × 213,349.50
4. Step 4: Simplify right side
   90,675x = 45,518,009,150.25
5. Step 5: Solve for x
   x = 45,518,009,150.25/90,675
6. Step 6: Final answer
   x = 501,990.73