Finding the Third Proportional to 1,977,346 and 4,317,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,977,346 : 4,317,139 = 4,317,139 : x
2. Step 2: Convert to fraction form
   1,977,346/4,317,139 = 4,317,139/x
3. Step 3: Cross multiply
   1,977,346x = 4,317,139 × 4,317,139
4. Step 4: Simplify right side
   1,977,346x = 18,637,689,145,321
5. Step 5: Solve for x
   x = 18,637,689,145,321/1,977,346
6. Step 6: Final answer
   x = 9,425,608.44