Finding the Third Proportional to 42,445,710 and 90,942,840

Step by Step Solution

1. Step 1: Write the proportion equation
   42,445,710 : 90,942,840 = 90,942,840 : x
2. Step 2: Convert to fraction form
   42,445,710/90,942,840 = 90,942,840/x
3. Step 3: Cross multiply
   42,445,710x = 90,942,840 × 90,942,840
4. Step 4: Simplify right side
   42,445,710x = 8,270,600,147,265,600
5. Step 5: Solve for x
   x = 8,270,600,147,265,600/42,445,710
6. Step 6: Final answer
   x = 194,851,261.70