Finding the Third Proportional to 156,238.88 and 334,620

Step by Step Solution

1. Step 1: Write the proportion equation
   156,238.88 : 334,620 = 334,620 : x
2. Step 2: Convert to fraction form
   156,238.88/334,620 = 334,620/x
3. Step 3: Cross multiply
   156,238.88x = 334,620 × 334,620
4. Step 4: Simplify right side
   156,238.88x = 111,970,544,400
5. Step 5: Solve for x
   x = 111,970,544,400/156,238.88
6. Step 6: Final answer
   x = 716,662.51