Finding the Third Proportional to 1,077,199 and 1,638,181.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077,199 : 1,638,181.50 = 1,638,181.50 : x
2. Step 2: Convert to fraction form
   1,077,199/1,638,181.50 = 1,638,181.50/x
3. Step 3: Cross multiply
   1,077,199x = 1,638,181.50 × 1,638,181.50
4. Step 4: Simplify right side
   1,077,199x = 2,683,638,626,942.25
5. Step 5: Solve for x
   x = 2,683,638,626,942.25/1,077,199
6. Step 6: Final answer
   x = 2,491,311.84