Finding the Third Proportional to 906,939 and 1,977,174

Step by Step Solution

1. Step 1: Write the proportion equation
   906,939 : 1,977,174 = 1,977,174 : x
2. Step 2: Convert to fraction form
   906,939/1,977,174 = 1,977,174/x
3. Step 3: Cross multiply
   906,939x = 1,977,174 × 1,977,174
4. Step 4: Simplify right side
   906,939x = 3,909,217,026,276
5. Step 5: Solve for x
   x = 3,909,217,026,276/906,939
6. Step 6: Final answer
   x = 4,310,341.74