Finding the Third Proportional to 1,255,392 and 1,611,888

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255,392 : 1,611,888 = 1,611,888 : x
2. Step 2: Convert to fraction form
   1,255,392/1,611,888 = 1,611,888/x
3. Step 3: Cross multiply
   1,255,392x = 1,611,888 × 1,611,888
4. Step 4: Simplify right side
   1,255,392x = 2,598,182,924,544
5. Step 5: Solve for x
   x = 2,598,182,924,544/1,255,392
6. Step 6: Final answer
   x = 2,069,618.83