Finding the Third Proportional to 905,422 and 1,918,776

Step by Step Solution

1. Step 1: Write the proportion equation
   905,422 : 1,918,776 = 1,918,776 : x
2. Step 2: Convert to fraction form
   905,422/1,918,776 = 1,918,776/x
3. Step 3: Cross multiply
   905,422x = 1,918,776 × 1,918,776
4. Step 4: Simplify right side
   905,422x = 3,681,701,338,176
5. Step 5: Solve for x
   x = 3,681,701,338,176/905,422
6. Step 6: Final answer
   x = 4,066,282.17