Finding the Third Proportional to 1,068,423 and 1,663,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,423 : 1,663,906.50 = 1,663,906.50 : x
2. Step 2: Convert to fraction form
   1,068,423/1,663,906.50 = 1,663,906.50/x
3. Step 3: Cross multiply
   1,068,423x = 1,663,906.50 × 1,663,906.50
4. Step 4: Simplify right side
   1,068,423x = 2,768,584,840,742.25
5. Step 5: Solve for x
   x = 2,768,584,840,742.25/1,068,423
6. Step 6: Final answer
   x = 2,591,281.58