Finding the Third Proportional to 53,392 and 123,590

Step by Step Solution

1. Step 1: Write the proportion equation
   53,392 : 123,590 = 123,590 : x
2. Step 2: Convert to fraction form
   53,392/123,590 = 123,590/x
3. Step 3: Cross multiply
   53,392x = 123,590 × 123,590
4. Step 4: Simplify right side
   53,392x = 15,274,488,100
5. Step 5: Solve for x
   x = 15,274,488,100/53,392
6. Step 6: Final answer
   x = 286,081.96