Finding the Third Proportional to 19,434,570 and 42,530,196

Step by Step Solution

1. Step 1: Write the proportion equation
   19,434,570 : 42,530,196 = 42,530,196 : x
2. Step 2: Convert to fraction form
   19,434,570/42,530,196 = 42,530,196/x
3. Step 3: Cross multiply
   19,434,570x = 42,530,196 × 42,530,196
4. Step 4: Simplify right side
   19,434,570x = 1,808,817,571,798,416
5. Step 5: Solve for x
   x = 1,808,817,571,798,416/19,434,570
6. Step 6: Final answer
   x = 93,072,168.40