Finding the Third Proportional to 19,445,646 and 42,390,300

Step by Step Solution

1. Step 1: Write the proportion equation
   19,445,646 : 42,390,300 = 42,390,300 : x
2. Step 2: Convert to fraction form
   19,445,646/42,390,300 = 42,390,300/x
3. Step 3: Cross multiply
   19,445,646x = 42,390,300 × 42,390,300
4. Step 4: Simplify right side
   19,445,646x = 1,796,937,534,090,000
5. Step 5: Solve for x
   x = 1,796,937,534,090,000/19,445,646
6. Step 6: Final answer
   x = 92,408,220.02