Finding the Third Proportional to 42,089,395.50 and 90,444,438

Step by Step Solution

1. Step 1: Write the proportion equation
   42,089,395.50 : 90,444,438 = 90,444,438 : x
2. Step 2: Convert to fraction form
   42,089,395.50/90,444,438 = 90,444,438/x
3. Step 3: Cross multiply
   42,089,395.50x = 90,444,438 × 90,444,438
4. Step 4: Simplify right side
   42,089,395.50x = 8,180,196,365,135,844
5. Step 5: Solve for x
   x = 8,180,196,365,135,844/42,089,395.50
6. Step 6: Final answer
   x = 194,352,906.90