Finding the Third Proportional to 221,673 and 334,837.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,673 : 334,837.50 = 334,837.50 : x
2. Step 2: Convert to fraction form
   221,673/334,837.50 = 334,837.50/x
3. Step 3: Cross multiply
   221,673x = 334,837.50 × 334,837.50
4. Step 4: Simplify right side
   221,673x = 112,116,151,406.25
5. Step 5: Solve for x
   x = 112,116,151,406.25/221,673
6. Step 6: Final answer
   x = 505,772.70