Finding the Third Proportional to 386,573.25 and 799,663.88

Step by Step Solution

1. Step 1: Write the proportion equation
   386,573.25 : 799,663.88 = 799,663.88 : x
2. Step 2: Convert to fraction form
   386,573.25/799,663.88 = 799,663.88/x
3. Step 3: Cross multiply
   386,573.25x = 799,663.88 × 799,663.88
4. Step 4: Simplify right side
   386,573.25x = 639,462,312,980.02
5. Step 5: Solve for x
   x = 639,462,312,980.02/386,573.25
6. Step 6: Final answer
   x = 1,654,181.49