Finding the Third Proportional to 215,056 and 334,360

Step by Step Solution

1. Step 1: Write the proportion equation
   215,056 : 334,360 = 334,360 : x
2. Step 2: Convert to fraction form
   215,056/334,360 = 334,360/x
3. Step 3: Cross multiply
   215,056x = 334,360 × 334,360
4. Step 4: Simplify right side
   215,056x = 111,796,609,600
5. Step 5: Solve for x
   x = 111,796,609,600/215,056
6. Step 6: Final answer
   x = 519,848.83