Finding the Third Proportional to 19,909,507,259.25 and 42,658,833,853.13

Step by Step Solution

1. Step 1: Write the proportion equation
   19,909,507,259.25 : 42,658,833,853.13 = 42,658,833,853.13 : x
2. Step 2: Convert to fraction form
   19,909,507,259.25/42,658,833,853.13 = 42,658,833,853.13/x
3. Step 3: Cross multiply
   19,909,507,259.25x = 42,658,833,853.13 × 42,658,833,853.13
4. Step 4: Simplify right side
   19,909,507,259.25x = 1,819,776,105,708,523,618,304
5. Step 5: Solve for x
   x = 1,819,776,105,708,523,618,304/19,909,507,259.25
6. Step 6: Final answer
   x = 91,402,367,824.20