Finding the Third Proportional to 344,169 and 738,158.63

Step by Step Solution

1. Step 1: Write the proportion equation
   344,169 : 738,158.63 = 738,158.63 : x
2. Step 2: Convert to fraction form
   344,169/738,158.63 = 738,158.63/x
3. Step 3: Cross multiply
   344,169x = 738,158.63 × 738,158.63
4. Step 4: Simplify right side
   344,169x = 544,878,155,661.89
5. Step 5: Solve for x
   x = 544,878,155,661.89/344,169
6. Step 6: Final answer
   x = 1,583,170.35