Finding the Third Proportional to 210,627 and 456,721.88

Step by Step Solution

1. Step 1: Write the proportion equation
   210,627 : 456,721.88 = 456,721.88 : x
2. Step 2: Convert to fraction form
   210,627/456,721.88 = 456,721.88/x
3. Step 3: Cross multiply
   210,627x = 456,721.88 × 456,721.88
4. Step 4: Simplify right side
   210,627x = 208,594,871,103.52
5. Step 5: Solve for x
   x = 208,594,871,103.52/210,627
6. Step 6: Final answer
   x = 990,352.00