Finding the Third Proportional to 681,423 and 997,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   681,423 : 997,345.50 = 997,345.50 : x
2. Step 2: Convert to fraction form
   681,423/997,345.50 = 997,345.50/x
3. Step 3: Cross multiply
   681,423x = 997,345.50 × 997,345.50
4. Step 4: Simplify right side
   681,423x = 994,698,046,370.25
5. Step 5: Solve for x
   x = 994,698,046,370.25/681,423
6. Step 6: Final answer
   x = 1,459,736.53