Finding the Third Proportional to 54,097,661 and 83,779,640

Step by Step Solution

1. Step 1: Write the proportion equation
   54,097,661 : 83,779,640 = 83,779,640 : x
2. Step 2: Convert to fraction form
   54,097,661/83,779,640 = 83,779,640/x
3. Step 3: Cross multiply
   54,097,661x = 83,779,640 × 83,779,640
4. Step 4: Simplify right side
   54,097,661x = 7,019,028,078,529,600
5. Step 5: Solve for x
   x = 7,019,028,078,529,600/54,097,661
6. Step 6: Final answer
   x = 129,747,348.57