Finding the Third Proportional to 45,319.50 and 63,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,319.50 : 63,706.50 = 63,706.50 : x
2. Step 2: Convert to fraction form
   45,319.50/63,706.50 = 63,706.50/x
3. Step 3: Cross multiply
   45,319.50x = 63,706.50 × 63,706.50
4. Step 4: Simplify right side
   45,319.50x = 4,058,518,142.25
5. Step 5: Solve for x
   x = 4,058,518,142.25/45,319.50
6. Step 6: Final answer
   x = 89,553.46