Finding the Third Proportional to 28,261 and 42,756

Step by Step Solution

1. Step 1: Write the proportion equation
   28,261 : 42,756 = 42,756 : x
2. Step 2: Convert to fraction form
   28,261/42,756 = 42,756/x
3. Step 3: Cross multiply
   28,261x = 42,756 × 42,756
4. Step 4: Simplify right side
   28,261x = 1,828,075,536
5. Step 5: Solve for x
   x = 1,828,075,536/28,261
6. Step 6: Final answer
   x = 64,685.45