Finding the Third Proportional to 286,992 and 446,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   286,992 : 446,890.50 = 446,890.50 : x
2. Step 2: Convert to fraction form
   286,992/446,890.50 = 446,890.50/x
3. Step 3: Cross multiply
   286,992x = 446,890.50 × 446,890.50
4. Step 4: Simplify right side
   286,992x = 199,711,118,990.25
5. Step 5: Solve for x
   x = 199,711,118,990.25/286,992
6. Step 6: Final answer
   x = 695,876.95