Finding the Third Proportional to 64,915,826 and 137,075,020

Step by Step Solution

1. Step 1: Write the proportion equation
   64,915,826 : 137,075,020 = 137,075,020 : x
2. Step 2: Convert to fraction form
   64,915,826/137,075,020 = 137,075,020/x
3. Step 3: Cross multiply
   64,915,826x = 137,075,020 × 137,075,020
4. Step 4: Simplify right side
   64,915,826x = 18,789,561,108,000,400
5. Step 5: Solve for x
   x = 18,789,561,108,000,400/64,915,826
6. Step 6: Final answer
   x = 289,444,997.71