Finding the Third Proportional to 42,607.13 and 89,619.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,607.13 : 89,619.75 = 89,619.75 : x
2. Step 2: Convert to fraction form
   42,607.13/89,619.75 = 89,619.75/x
3. Step 3: Cross multiply
   42,607.13x = 89,619.75 × 89,619.75
4. Step 4: Simplify right side
   42,607.13x = 8,031,699,590.06
5. Step 5: Solve for x
   x = 8,031,699,590.06/42,607.13
6. Step 6: Final answer
   x = 188,506.02