Finding the Third Proportional to 153,486 and 314,579.25

Step by Step Solution

1. Step 1: Write the proportion equation
   153,486 : 314,579.25 = 314,579.25 : x
2. Step 2: Convert to fraction form
   153,486/314,579.25 = 314,579.25/x
3. Step 3: Cross multiply
   153,486x = 314,579.25 × 314,579.25
4. Step 4: Simplify right side
   153,486x = 98,960,104,530.56
5. Step 5: Solve for x
   x = 98,960,104,530.56/153,486
6. Step 6: Final answer
   x = 644,750.04