Finding the Third Proportional to 19,257,360 and 42,293,280

Step by Step Solution

1. Step 1: Write the proportion equation
   19,257,360 : 42,293,280 = 42,293,280 : x
2. Step 2: Convert to fraction form
   19,257,360/42,293,280 = 42,293,280/x
3. Step 3: Cross multiply
   19,257,360x = 42,293,280 × 42,293,280
4. Step 4: Simplify right side
   19,257,360x = 1,788,721,533,158,400
5. Step 5: Solve for x
   x = 1,788,721,533,158,400/19,257,360
6. Step 6: Final answer
   x = 92,885,085.66