Finding the Third Proportional to 454,653 and 711,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   454,653 : 711,139.50 = 711,139.50 : x
2. Step 2: Convert to fraction form
   454,653/711,139.50 = 711,139.50/x
3. Step 3: Cross multiply
   454,653x = 711,139.50 × 711,139.50
4. Step 4: Simplify right side
   454,653x = 505,719,388,460.25
5. Step 5: Solve for x
   x = 505,719,388,460.25/454,653
6. Step 6: Final answer
   x = 1,112,319.48