Finding the Third Proportional to 1,448,358 and 2,191,178

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448,358 : 2,191,178 = 2,191,178 : x
2. Step 2: Convert to fraction form
   1,448,358/2,191,178 = 2,191,178/x
3. Step 3: Cross multiply
   1,448,358x = 2,191,178 × 2,191,178
4. Step 4: Simplify right side
   1,448,358x = 4,801,261,027,684
5. Step 5: Solve for x
   x = 4,801,261,027,684/1,448,358
6. Step 6: Final answer
   x = 3,314,968.42