Finding the Third Proportional to 28,507 and 60,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,507 : 60,704.50 = 60,704.50 : x
2. Step 2: Convert to fraction form
   28,507/60,704.50 = 60,704.50/x
3. Step 3: Cross multiply
   28,507x = 60,704.50 × 60,704.50
4. Step 4: Simplify right side
   28,507x = 3,685,036,320.25
5. Step 5: Solve for x
   x = 3,685,036,320.25/28,507
6. Step 6: Final answer
   x = 129,267.77