Finding the Third Proportional to 91,327.50 and 197,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,327.50 : 197,167.50 = 197,167.50 : x
2. Step 2: Convert to fraction form
   91,327.50/197,167.50 = 197,167.50/x
3. Step 3: Cross multiply
   91,327.50x = 197,167.50 × 197,167.50
4. Step 4: Simplify right side
   91,327.50x = 38,875,023,056.25
5. Step 5: Solve for x
   x = 38,875,023,056.25/91,327.50
6. Step 6: Final answer
   x = 425,666.13