Finding the Third Proportional to 291,602 and 437,404

Step by Step Solution

1. Step 1: Write the proportion equation
   291,602 : 437,404 = 437,404 : x
2. Step 2: Convert to fraction form
   291,602/437,404 = 437,404/x
3. Step 3: Cross multiply
   291,602x = 437,404 × 437,404
4. Step 4: Simplify right side
   291,602x = 191,322,259,216
5. Step 5: Solve for x
   x = 191,322,259,216/291,602
6. Step 6: Final answer
   x = 656,107.50