Finding the Third Proportional to 671,329,986 and 1,036,808,139

Step by Step Solution

1. Step 1: Write the proportion equation
   671,329,986 : 1,036,808,139 = 1,036,808,139 : x
2. Step 2: Convert to fraction form
   671,329,986/1,036,808,139 = 1,036,808,139/x
3. Step 3: Cross multiply
   671,329,986x = 1,036,808,139 × 1,036,808,139
4. Step 4: Simplify right side
   671,329,986x = 1,074,971,117,096,643,328
5. Step 5: Solve for x
   x = 1,074,971,117,096,643,328/671,329,986
6. Step 6: Final answer
   x = 1,601,255,924.08