Finding the Third Proportional to 2,130,664 and 4,564,592

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130,664 : 4,564,592 = 4,564,592 : x
2. Step 2: Convert to fraction form
   2,130,664/4,564,592 = 4,564,592/x
3. Step 3: Cross multiply
   2,130,664x = 4,564,592 × 4,564,592
4. Step 4: Simplify right side
   2,130,664x = 20,835,500,126,464
5. Step 5: Solve for x
   x = 20,835,500,126,464/2,130,664
6. Step 6: Final answer
   x = 9,778,876.50