Finding the Third Proportional to 78,763,919,139 and 169,473,841,015.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,763,919,139 : 169,473,841,015.50 = 169,473,841,015.50 : x
2. Step 2: Convert to fraction form
   78,763,919,139/169,473,841,015.50 = 169,473,841,015.50/x
3. Step 3: Cross multiply
   78,763,919,139x = 169,473,841,015.50 × 169,473,841,015.50
4. Step 4: Simplify right side
   78,763,919,139x = 28,721,382,788,546,972,090,368
5. Step 5: Solve for x
   x = 28,721,382,788,546,972,090,368/78,763,919,139
6. Step 6: Final answer
   x = 364,651,519,407.77