Finding the Third Proportional to 1,278,280 and 2,736,116.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,280 : 2,736,116.50 = 2,736,116.50 : x
2. Step 2: Convert to fraction form
   1,278,280/2,736,116.50 = 2,736,116.50/x
3. Step 3: Cross multiply
   1,278,280x = 2,736,116.50 × 2,736,116.50
4. Step 4: Simplify right side
   1,278,280x = 7,486,333,501,572.25
5. Step 5: Solve for x
   x = 7,486,333,501,572.25/1,278,280
6. Step 6: Final answer
   x = 5,856,567.81