Finding the Third Proportional to 90,973.50 and 197,410

Step by Step Solution

1. Step 1: Write the proportion equation
   90,973.50 : 197,410 = 197,410 : x
2. Step 2: Convert to fraction form
   90,973.50/197,410 = 197,410/x
3. Step 3: Cross multiply
   90,973.50x = 197,410 × 197,410
4. Step 4: Simplify right side
   90,973.50x = 38,970,708,100
5. Step 5: Solve for x
   x = 38,970,708,100/90,973.50
6. Step 6: Final answer
   x = 428,374.29