Finding the Third Proportional to 864,356 and 1,886,174

Step by Step Solution

1. Step 1: Write the proportion equation
   864,356 : 1,886,174 = 1,886,174 : x
2. Step 2: Convert to fraction form
   864,356/1,886,174 = 1,886,174/x
3. Step 3: Cross multiply
   864,356x = 1,886,174 × 1,886,174
4. Step 4: Simplify right side
   864,356x = 3,557,652,358,276
5. Step 5: Solve for x
   x = 3,557,652,358,276/864,356
6. Step 6: Final answer
   x = 4,115,957.27