Finding the Third Proportional to 45,687.63 and 68,531.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,687.63 : 68,531.50 = 68,531.50 : x
2. Step 2: Convert to fraction form
   45,687.63/68,531.50 = 68,531.50/x
3. Step 3: Cross multiply
   45,687.63x = 68,531.50 × 68,531.50
4. Step 4: Simplify right side
   45,687.63x = 4,696,566,492.25
5. Step 5: Solve for x
   x = 4,696,566,492.25/45,687.63
6. Step 6: Final answer
   x = 102,797.34