Finding the Third Proportional to 78,663,924 and 123,400,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,663,924 : 123,400,484.50 = 123,400,484.50 : x
2. Step 2: Convert to fraction form
   78,663,924/123,400,484.50 = 123,400,484.50/x
3. Step 3: Cross multiply
   78,663,924x = 123,400,484.50 × 123,400,484.50
4. Step 4: Simplify right side
   78,663,924x = 15,227,679,574,834,740
5. Step 5: Solve for x
   x = 15,227,679,574,834,740/78,663,924
6. Step 6: Final answer
   x = 193,578,947.00