Finding the Third Proportional to 101,190 and 217,687.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,190 : 217,687.50 = 217,687.50 : x
2. Step 2: Convert to fraction form
   101,190/217,687.50 = 217,687.50/x
3. Step 3: Cross multiply
   101,190x = 217,687.50 × 217,687.50
4. Step 4: Simplify right side
   101,190x = 47,387,847,656.25
5. Step 5: Solve for x
   x = 47,387,847,656.25/101,190
6. Step 6: Final answer
   x = 468,305.64