Finding the Third Proportional to 386,953.50 and 586,272

Step by Step Solution

1. Step 1: Write the proportion equation
   386,953.50 : 586,272 = 586,272 : x
2. Step 2: Convert to fraction form
   386,953.50/586,272 = 586,272/x
3. Step 3: Cross multiply
   386,953.50x = 586,272 × 586,272
4. Step 4: Simplify right side
   386,953.50x = 343,714,857,984
5. Step 5: Solve for x
   x = 343,714,857,984/386,953.50
6. Step 6: Final answer
   x = 888,258.82