Finding the Third Proportional to 17,977,659 and 39,620,046

Step by Step Solution

1. Step 1: Write the proportion equation
   17,977,659 : 39,620,046 = 39,620,046 : x
2. Step 2: Convert to fraction form
   17,977,659/39,620,046 = 39,620,046/x
3. Step 3: Cross multiply
   17,977,659x = 39,620,046 × 39,620,046
4. Step 4: Simplify right side
   17,977,659x = 1,569,748,045,042,116
5. Step 5: Solve for x
   x = 1,569,748,045,042,116/17,977,659
6. Step 6: Final answer
   x = 87,316,599.18