Finding the Third Proportional to 78,640,432 and 117,960,658

Step by Step Solution

1. Step 1: Write the proportion equation
   78,640,432 : 117,960,658 = 117,960,658 : x
2. Step 2: Convert to fraction form
   78,640,432/117,960,658 = 117,960,658/x
3. Step 3: Cross multiply
   78,640,432x = 117,960,658 × 117,960,658
4. Step 4: Simplify right side
   78,640,432x = 13,914,716,835,792,964
5. Step 5: Solve for x
   x = 13,914,716,835,792,964/78,640,432
6. Step 6: Final answer
   x = 176,941,002.00