Finding the Third Proportional to 659,968,136 and 1,374,141,040

Step by Step Solution

1. Step 1: Write the proportion equation
   659,968,136 : 1,374,141,040 = 1,374,141,040 : x
2. Step 2: Convert to fraction form
   659,968,136/1,374,141,040 = 1,374,141,040/x
3. Step 3: Cross multiply
   659,968,136x = 1,374,141,040 × 1,374,141,040
4. Step 4: Simplify right side
   659,968,136x = 1,888,263,597,812,281,600
5. Step 5: Solve for x
   x = 1,888,263,597,812,281,600/659,968,136
6. Step 6: Final answer
   x = 2,861,143,583.77