Finding the Third Proportional to 28,617 and 42,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,617 : 42,068.50 = 42,068.50 : x
2. Step 2: Convert to fraction form
   28,617/42,068.50 = 42,068.50/x
3. Step 3: Cross multiply
   28,617x = 42,068.50 × 42,068.50
4. Step 4: Simplify right side
   28,617x = 1,769,758,692.25
5. Step 5: Solve for x
   x = 1,769,758,692.25/28,617
6. Step 6: Final answer
   x = 61,842.91