Finding the Third Proportional to 1,402,948,485 and 1,961,404,679.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402,948,485 : 1,961,404,679.25 = 1,961,404,679.25 : x
2. Step 2: Convert to fraction form
   1,402,948,485/1,961,404,679.25 = 1,961,404,679.25/x
3. Step 3: Cross multiply
   1,402,948,485x = 1,961,404,679.25 × 1,961,404,679.25
4. Step 4: Simplify right side
   1,402,948,485x = 3,847,108,315,783,795,200
5. Step 5: Solve for x
   x = 3,847,108,315,783,795,200/1,402,948,485
6. Step 6: Final answer
   x = 2,742,159,357.18