Finding the Third Proportional to 53,419.88 and 83,043.56

Step by Step Solution

1. Step 1: Write the proportion equation
   53,419.88 : 83,043.56 = 83,043.56 : x
2. Step 2: Convert to fraction form
   53,419.88/83,043.56 = 83,043.56/x
3. Step 3: Cross multiply
   53,419.88x = 83,043.56 × 83,043.56
4. Step 4: Simplify right side
   53,419.88x = 6,896,233,272.69
5. Step 5: Solve for x
   x = 6,896,233,272.69/53,419.88
6. Step 6: Final answer
   x = 129,094.90