Finding the Third Proportional to 189,634.50 and 402,651

Step by Step Solution

1. Step 1: Write the proportion equation
   189,634.50 : 402,651 = 402,651 : x
2. Step 2: Convert to fraction form
   189,634.50/402,651 = 402,651/x
3. Step 3: Cross multiply
   189,634.50x = 402,651 × 402,651
4. Step 4: Simplify right side
   189,634.50x = 162,127,827,801
5. Step 5: Solve for x
   x = 162,127,827,801/189,634.50
6. Step 6: Final answer
   x = 854,949.01