Finding the Third Proportional to 442,014 and 679,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   442,014 : 679,801.50 = 679,801.50 : x
2. Step 2: Convert to fraction form
   442,014/679,801.50 = 679,801.50/x
3. Step 3: Cross multiply
   442,014x = 679,801.50 × 679,801.50
4. Step 4: Simplify right side
   442,014x = 462,130,079,402.25
5. Step 5: Solve for x
   x = 462,130,079,402.25/442,014
6. Step 6: Final answer
   x = 1,045,510.05