Finding the Third Proportional to 78,863,076 and 172,567,748

Step by Step Solution

1. Step 1: Write the proportion equation
   78,863,076 : 172,567,748 = 172,567,748 : x
2. Step 2: Convert to fraction form
   78,863,076/172,567,748 = 172,567,748/x
3. Step 3: Cross multiply
   78,863,076x = 172,567,748 × 172,567,748
4. Step 4: Simplify right side
   78,863,076x = 29,779,627,649,791,504
5. Step 5: Solve for x
   x = 29,779,627,649,791,504/78,863,076
6. Step 6: Final answer
   x = 377,611,794.52