Finding the Third Proportional to 53,449.88 and 84,624.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,449.88 : 84,624.75 = 84,624.75 : x
2. Step 2: Convert to fraction form
   53,449.88/84,624.75 = 84,624.75/x
3. Step 3: Cross multiply
   53,449.88x = 84,624.75 × 84,624.75
4. Step 4: Simplify right side
   53,449.88x = 7,161,348,312.56
5. Step 5: Solve for x
   x = 7,161,348,312.56/53,449.88
6. Step 6: Final answer
   x = 133,982.51