Finding the Third Proportional to 291,294.56 and 447,093

Step by Step Solution

1. Step 1: Write the proportion equation
   291,294.56 : 447,093 = 447,093 : x
2. Step 2: Convert to fraction form
   291,294.56/447,093 = 447,093/x
3. Step 3: Cross multiply
   291,294.56x = 447,093 × 447,093
4. Step 4: Simplify right side
   291,294.56x = 199,892,150,649
5. Step 5: Solve for x
   x = 199,892,150,649/291,294.56
6. Step 6: Final answer
   x = 686,219.99