Finding the Third Proportional to 42,246,636 and 90,556,473

Step by Step Solution

1. Step 1: Write the proportion equation
   42,246,636 : 90,556,473 = 90,556,473 : x
2. Step 2: Convert to fraction form
   42,246,636/90,556,473 = 90,556,473/x
3. Step 3: Cross multiply
   42,246,636x = 90,556,473 × 90,556,473
4. Step 4: Simplify right side
   42,246,636x = 8,200,474,802,199,729
5. Step 5: Solve for x
   x = 8,200,474,802,199,729/42,246,636
6. Step 6: Final answer
   x = 194,109,533.41