Finding the Third Proportional to 163,611.50 and 342,045

Step by Step Solution

1. Step 1: Write the proportion equation
   163,611.50 : 342,045 = 342,045 : x
2. Step 2: Convert to fraction form
   163,611.50/342,045 = 342,045/x
3. Step 3: Cross multiply
   163,611.50x = 342,045 × 342,045
4. Step 4: Simplify right side
   163,611.50x = 116,994,782,025
5. Step 5: Solve for x
   x = 116,994,782,025/163,611.50
6. Step 6: Final answer
   x = 715,076.76