Finding the Third Proportional to 173,223 and 379,516.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,223 : 379,516.50 = 379,516.50 : x
2. Step 2: Convert to fraction form
   173,223/379,516.50 = 379,516.50/x
3. Step 3: Cross multiply
   173,223x = 379,516.50 × 379,516.50
4. Step 4: Simplify right side
   173,223x = 144,032,773,772.25
5. Step 5: Solve for x
   x = 144,032,773,772.25/173,223
6. Step 6: Final answer
   x = 831,487.58