Finding the Third Proportional to 53,392.50 and 72,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,392.50 : 72,400.50 = 72,400.50 : x
2. Step 2: Convert to fraction form
   53,392.50/72,400.50 = 72,400.50/x
3. Step 3: Cross multiply
   53,392.50x = 72,400.50 × 72,400.50
4. Step 4: Simplify right side
   53,392.50x = 5,241,832,400.25
5. Step 5: Solve for x
   x = 5,241,832,400.25/53,392.50
6. Step 6: Final answer
   x = 98,175.44