Finding the Third Proportional to 19,875 and 42,516

Step by Step Solution

1. Step 1: Write the proportion equation
   19,875 : 42,516 = 42,516 : x
2. Step 2: Convert to fraction form
   19,875/42,516 = 42,516/x
3. Step 3: Cross multiply
   19,875x = 42,516 × 42,516
4. Step 4: Simplify right side
   19,875x = 1,807,610,256
5. Step 5: Solve for x
   x = 1,807,610,256/19,875
6. Step 6: Final answer
   x = 90,948.94