Finding the Third Proportional to 221,672 and 334,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   221,672 : 334,835.50 = 334,835.50 : x
2. Step 2: Convert to fraction form
   221,672/334,835.50 = 334,835.50/x
3. Step 3: Cross multiply
   221,672x = 334,835.50 × 334,835.50
4. Step 4: Simplify right side
   221,672x = 112,114,812,060.25
5. Step 5: Solve for x
   x = 112,114,812,060.25/221,672
6. Step 6: Final answer
   x = 505,768.94