Finding the Third Proportional to 20,042,118 and 42,918,585

Step by Step Solution

1. Step 1: Write the proportion equation
   20,042,118 : 42,918,585 = 42,918,585 : x
2. Step 2: Convert to fraction form
   20,042,118/42,918,585 = 42,918,585/x
3. Step 3: Cross multiply
   20,042,118x = 42,918,585 × 42,918,585
4. Step 4: Simplify right side
   20,042,118x = 1,842,004,938,402,225
5. Step 5: Solve for x
   x = 1,842,004,938,402,225/20,042,118
6. Step 6: Final answer
   x = 91,906,700.60