Finding the Third Proportional to 338,656.88 and 464,391

Step by Step Solution

1. Step 1: Write the proportion equation
   338,656.88 : 464,391 = 464,391 : x
2. Step 2: Convert to fraction form
   338,656.88/464,391 = 464,391/x
3. Step 3: Cross multiply
   338,656.88x = 464,391 × 464,391
4. Step 4: Simplify right side
   338,656.88x = 215,659,000,881
5. Step 5: Solve for x
   x = 215,659,000,881/338,656.88
6. Step 6: Final answer
   x = 636,806.80