Finding the Third Proportional to 28,650 and 42,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,650 : 42,988.50 = 42,988.50 : x
2. Step 2: Convert to fraction form
   28,650/42,988.50 = 42,988.50/x
3. Step 3: Cross multiply
   28,650x = 42,988.50 × 42,988.50
4. Step 4: Simplify right side
   28,650x = 1,848,011,132.25
5. Step 5: Solve for x
   x = 1,848,011,132.25/28,650
6. Step 6: Final answer
   x = 64,503.01