Finding the Third Proportional to 31,739,124 and 64,370,679

Step by Step Solution

1. Step 1: Write the proportion equation
   31,739,124 : 64,370,679 = 64,370,679 : x
2. Step 2: Convert to fraction form
   31,739,124/64,370,679 = 64,370,679/x
3. Step 3: Cross multiply
   31,739,124x = 64,370,679 × 64,370,679
4. Step 4: Simplify right side
   31,739,124x = 4,143,584,314,921,041
5. Step 5: Solve for x
   x = 4,143,584,314,921,041/31,739,124
6. Step 6: Final answer
   x = 130,551,313.10