Finding the Third Proportional to 42,339 and 90,516

Step by Step Solution

1. Step 1: Write the proportion equation
   42,339 : 90,516 = 90,516 : x
2. Step 2: Convert to fraction form
   42,339/90,516 = 90,516/x
3. Step 3: Cross multiply
   42,339x = 90,516 × 90,516
4. Step 4: Simplify right side
   42,339x = 8,193,146,256
5. Step 5: Solve for x
   x = 8,193,146,256/42,339
6. Step 6: Final answer
   x = 193,512.98