Finding the Third Proportional to 207,306 and 435,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   207,306 : 435,499.88 = 435,499.88 : x
2. Step 2: Convert to fraction form
   207,306/435,499.88 = 435,499.88/x
3. Step 3: Cross multiply
   207,306x = 435,499.88 × 435,499.88
4. Step 4: Simplify right side
   207,306x = 189,660,141,125.02
5. Step 5: Solve for x
   x = 189,660,141,125.02/207,306
6. Step 6: Final answer
   x = 914,880.13