Finding the Third Proportional to 156,393 and 334,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,393 : 334,930.50 = 334,930.50 : x
2. Step 2: Convert to fraction form
   156,393/334,930.50 = 334,930.50/x
3. Step 3: Cross multiply
   156,393x = 334,930.50 × 334,930.50
4. Step 4: Simplify right side
   156,393x = 112,178,439,830.25
5. Step 5: Solve for x
   x = 112,178,439,830.25/156,393
6. Step 6: Final answer
   x = 717,285.56