Finding the Third Proportional to 2,130,138 and 4,601,448

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130,138 : 4,601,448 = 4,601,448 : x
2. Step 2: Convert to fraction form
   2,130,138/4,601,448 = 4,601,448/x
3. Step 3: Cross multiply
   2,130,138x = 4,601,448 × 4,601,448
4. Step 4: Simplify right side
   2,130,138x = 21,173,323,696,704
5. Step 5: Solve for x
   x = 21,173,323,696,704/2,130,138
6. Step 6: Final answer
   x = 9,939,883.56