Finding the Third Proportional to 53,455.50 and 84,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,455.50 : 84,637.50 = 84,637.50 : x
2. Step 2: Convert to fraction form
   53,455.50/84,637.50 = 84,637.50/x
3. Step 3: Cross multiply
   53,455.50x = 84,637.50 × 84,637.50
4. Step 4: Simplify right side
   53,455.50x = 7,163,506,406.25
5. Step 5: Solve for x
   x = 7,163,506,406.25/53,455.50
6. Step 6: Final answer
   x = 134,008.78