Finding the Third Proportional to 1,664,128 and 3,577,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,128 : 3,577,208 = 3,577,208 : x
2. Step 2: Convert to fraction form
   1,664,128/3,577,208 = 3,577,208/x
3. Step 3: Cross multiply
   1,664,128x = 3,577,208 × 3,577,208
4. Step 4: Simplify right side
   1,664,128x = 12,796,417,075,264
5. Step 5: Solve for x
   x = 12,796,417,075,264/1,664,128
6. Step 6: Final answer
   x = 7,689,562.99