Finding the Third Proportional to 215,487 and 341,045.25

Step by Step Solution

1. Step 1: Write the proportion equation
   215,487 : 341,045.25 = 341,045.25 : x
2. Step 2: Convert to fraction form
   215,487/341,045.25 = 341,045.25/x
3. Step 3: Cross multiply
   215,487x = 341,045.25 × 341,045.25
4. Step 4: Simplify right side
   215,487x = 116,311,862,547.56
5. Step 5: Solve for x
   x = 116,311,862,547.56/215,487
6. Step 6: Final answer
   x = 539,762.78