Finding the Third Proportional to 28,111 and 42,351

Step by Step Solution

1. Step 1: Write the proportion equation
   28,111 : 42,351 = 42,351 : x
2. Step 2: Convert to fraction form
   28,111/42,351 = 42,351/x
3. Step 3: Cross multiply
   28,111x = 42,351 × 42,351
4. Step 4: Simplify right side
   28,111x = 1,793,607,201
5. Step 5: Solve for x
   x = 1,793,607,201/28,111
6. Step 6: Final answer
   x = 63,804.46