Finding the Third Proportional to 636,345 and 920,254.50

Step by Step Solution

1. Step 1: Write the proportion equation
   636,345 : 920,254.50 = 920,254.50 : x
2. Step 2: Convert to fraction form
   636,345/920,254.50 = 920,254.50/x
3. Step 3: Cross multiply
   636,345x = 920,254.50 × 920,254.50
4. Step 4: Simplify right side
   636,345x = 846,868,344,770.25
5. Step 5: Solve for x
   x = 846,868,344,770.25/636,345
6. Step 6: Final answer
   x = 1,330,832.09