Finding the Third Proportional to 1,221,178 and 1,868,032

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,178 : 1,868,032 = 1,868,032 : x
2. Step 2: Convert to fraction form
   1,221,178/1,868,032 = 1,868,032/x
3. Step 3: Cross multiply
   1,221,178x = 1,868,032 × 1,868,032
4. Step 4: Simplify right side
   1,221,178x = 3,489,543,553,024
5. Step 5: Solve for x
   x = 3,489,543,553,024/1,221,178
6. Step 6: Final answer
   x = 2,857,522.45