Finding the Third Proportional to 51,985 and 74,085.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,985 : 74,085.50 = 74,085.50 : x
2. Step 2: Convert to fraction form
   51,985/74,085.50 = 74,085.50/x
3. Step 3: Cross multiply
   51,985x = 74,085.50 × 74,085.50
4. Step 4: Simplify right side
   51,985x = 5,488,661,310.25
5. Step 5: Solve for x
   x = 5,488,661,310.25/51,985
6. Step 6: Final answer
   x = 105,581.64