Finding the Third Proportional to 53,445 and 84,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,445 : 84,622.50 = 84,622.50 : x
2. Step 2: Convert to fraction form
   53,445/84,622.50 = 84,622.50/x
3. Step 3: Cross multiply
   53,445x = 84,622.50 × 84,622.50
4. Step 4: Simplify right side
   53,445x = 7,160,967,506.25
5. Step 5: Solve for x
   x = 7,160,967,506.25/53,445
6. Step 6: Final answer
   x = 133,987.60