Finding the Third Proportional to 155,655 and 340,411.88

Step by Step Solution

1. Step 1: Write the proportion equation
   155,655 : 340,411.88 = 340,411.88 : x
2. Step 2: Convert to fraction form
   155,655/340,411.88 = 340,411.88/x
3. Step 3: Cross multiply
   155,655x = 340,411.88 × 340,411.88
4. Step 4: Simplify right side
   155,655x = 115,880,244,641.02
5. Step 5: Solve for x
   x = 115,880,244,641.02/155,655
6. Step 6: Final answer
   x = 744,468.50