Finding the Third Proportional to 140,056 and 217,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,056 : 217,225.50 = 217,225.50 : x
2. Step 2: Convert to fraction form
   140,056/217,225.50 = 217,225.50/x
3. Step 3: Cross multiply
   140,056x = 217,225.50 × 217,225.50
4. Step 4: Simplify right side
   140,056x = 47,186,917,850.25
5. Step 5: Solve for x
   x = 47,186,917,850.25/140,056
6. Step 6: Final answer
   x = 336,914.65