Finding the Third Proportional to 19,953,567 and 42,890,688

Step by Step Solution

1. Step 1: Write the proportion equation
   19,953,567 : 42,890,688 = 42,890,688 : x
2. Step 2: Convert to fraction form
   19,953,567/42,890,688 = 42,890,688/x
3. Step 3: Cross multiply
   19,953,567x = 42,890,688 × 42,890,688
4. Step 4: Simplify right side
   19,953,567x = 1,839,611,117,113,344
5. Step 5: Solve for x
   x = 1,839,611,117,113,344/19,953,567
6. Step 6: Final answer
   x = 92,194,599.45