Finding the Third Proportional to 3,529,983 and 7,707,321

Step by Step Solution

1. Step 1: Write the proportion equation
   3,529,983 : 7,707,321 = 7,707,321 : x
2. Step 2: Convert to fraction form
   3,529,983/7,707,321 = 7,707,321/x
3. Step 3: Cross multiply
   3,529,983x = 7,707,321 × 7,707,321
4. Step 4: Simplify right side
   3,529,983x = 59,402,796,997,041
5. Step 5: Solve for x
   x = 59,402,796,997,041/3,529,983
6. Step 6: Final answer
   x = 16,828,068.86