Finding the Third Proportional to 7,139,546 and 10,876,664

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,546 : 10,876,664 = 10,876,664 : x
2. Step 2: Convert to fraction form
   7,139,546/10,876,664 = 10,876,664/x
3. Step 3: Cross multiply
   7,139,546x = 10,876,664 × 10,876,664
4. Step 4: Simplify right side
   7,139,546x = 118,301,819,768,896
5. Step 5: Solve for x
   x = 118,301,819,768,896/7,139,546
6. Step 6: Final answer
   x = 16,569,935.93