Finding the Third Proportional to 28,936.50 and 61,428

Step by Step Solution

1. Step 1: Write the proportion equation
   28,936.50 : 61,428 = 61,428 : x
2. Step 2: Convert to fraction form
   28,936.50/61,428 = 61,428/x
3. Step 3: Cross multiply
   28,936.50x = 61,428 × 61,428
4. Step 4: Simplify right side
   28,936.50x = 3,773,399,184
5. Step 5: Solve for x
   x = 3,773,399,184/28,936.50
6. Step 6: Final answer
   x = 130,402.75