Finding the Third Proportional to 28,938 and 64,460

Step by Step Solution

1. Step 1: Write the proportion equation
   28,938 : 64,460 = 64,460 : x
2. Step 2: Convert to fraction form
   28,938/64,460 = 64,460/x
3. Step 3: Cross multiply
   28,938x = 64,460 × 64,460
4. Step 4: Simplify right side
   28,938x = 4,155,091,600
5. Step 5: Solve for x
   x = 4,155,091,600/28,938
6. Step 6: Final answer
   x = 143,586.00