Finding the Third Proportional to 293,452 and 643,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   293,452 : 643,158.50 = 643,158.50 : x
2. Step 2: Convert to fraction form
   293,452/643,158.50 = 643,158.50/x
3. Step 3: Cross multiply
   293,452x = 643,158.50 × 643,158.50
4. Step 4: Simplify right side
   293,452x = 413,652,856,122.25
5. Step 5: Solve for x
   x = 413,652,856,122.25/293,452
6. Step 6: Final answer
   x = 1,409,609.94