Finding the Third Proportional to 434,979 and 655,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,979 : 655,141.50 = 655,141.50 : x
2. Step 2: Convert to fraction form
   434,979/655,141.50 = 655,141.50/x
3. Step 3: Cross multiply
   434,979x = 655,141.50 × 655,141.50
4. Step 4: Simplify right side
   434,979x = 429,210,385,022.25
5. Step 5: Solve for x
   x = 429,210,385,022.25/434,979
6. Step 6: Final answer
   x = 986,738.18