Finding the Third Proportional to 253,719.59 and 525,423.55

Step by Step Solution

1. Step 1: Write the proportion equation
   253,719.59 : 525,423.55 = 525,423.55 : x
2. Step 2: Convert to fraction form
   253,719.59/525,423.55 = 525,423.55/x
3. Step 3: Cross multiply
   253,719.59x = 525,423.55 × 525,423.55
4. Step 4: Simplify right side
   253,719.59x = 276,069,903,097.58
5. Step 5: Solve for x
   x = 276,069,903,097.58/253,719.59
6. Step 6: Final answer
   x = 1,088,090.62