Finding the Third Proportional to 156,404.50 and 334,949

Step by Step Solution

1. Step 1: Write the proportion equation
   156,404.50 : 334,949 = 334,949 : x
2. Step 2: Convert to fraction form
   156,404.50/334,949 = 334,949/x
3. Step 3: Cross multiply
   156,404.50x = 334,949 × 334,949
4. Step 4: Simplify right side
   156,404.50x = 112,190,832,601
5. Step 5: Solve for x
   x = 112,190,832,601/156,404.50
6. Step 6: Final answer
   x = 717,312.05